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2010221111220 = 2235717281543573
BaseRepresentation
bin11101010000001010100…
…000111110011110110100
321010011201202200002122220
4131100022200332132310
5230413413101024340
64135252142522340
7265143103342110
oct35201240763664
97104652602586
102010221111220
11705591457a43
12285716b963b0
13117741cbac8a
146d41c12c740
15374554b4ed0
hex1d40a83e7b4

2010221111220 has 96 divisors (see below), whose sum is σ = 6811102142208. Its totient is φ = 432450926592.

The previous prime is 2010221111201. The next prime is 2010221111231. The reversal of 2010221111220 is 221111220102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2010221111220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140764647 + ... + 140778926.

It is an arithmetic number, because the mean of its divisors is an integer number (70948980648).

Almost surely, 22010221111220 is an apocalyptic number.

2010221111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2010221111220 is an abundant number, since it is smaller than the sum of its proper divisors (4800881030988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2010221111220 is a wasteful number, since it uses less digits than its factorization.

2010221111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281543609 (or 281543607 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2010221111220 its reverse (221111220102), we get a palindrome (2231332331322).

The spelling of 2010221111220 in words is "two trillion, ten billion, two hundred twenty-one million, one hundred eleven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 17 20 21 28 30 34 35 42 51 60 68 70 84 85 102 105 119 140 170 204 210 238 255 340 357 420 476 510 595 714 1020 1190 1428 1785 2380 3570 7140 281543573 563087146 844630719 1126174292 1407717865 1689261438 1970805011 2815435730 3378522876 3941610022 4223153595 4786240741 5630871460 5912415033 7883220044 8446307190 9572481482 9854025055 11824830066 14358722223 16892614380 19144962964 19708050110 23649660132 23931203705 28717444446 29562075165 33503685187 39416100220 47862407410 57434888892 59124150330 67007370374 71793611115 95724814820 100511055561 118248300660 134014740748 143587222230 167518425935 201022111122 287174444460 335036851870 402044222244 502555277805 670073703740 1005110555610 2010221111220