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212211002011020 = 223511704873021691
BaseRepresentation
bin110000010000000100111001…
…011001000110110110001100
31000211101011200121012220200220
4300100010321121012312030
5210303331113003323040
62031200215524551340
762461511312664105
oct6020047131066614
91024334617186626
10212211002011020
11616871a9340041
121b973ab7252550
13915454744a70c
143a590d29593ac
15198016626e2d0
hexc10139646d8c

212211002011020 has 48 divisors (see below), whose sum is σ = 594191509916928. Its totient is φ = 56589533461440.

The previous prime is 212211002010983. The next prime is 212211002011031. The reversal of 212211002011020 is 20110200112212.

It is a super-2 number, since 2×2122110020110202 (a number of 29 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68718375 + ... + 71740065.

It is an arithmetic number, because the mean of its divisors is an integer number (12378989789936).

Almost surely, 2212211002011020 is an apocalyptic number.

212211002011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212211002011020 is an abundant number, since it is smaller than the sum of its proper divisors (381980507905908).

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

212211002011020 is a wasteful number, since it uses less digits than its factorization.

212211002011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192190 (or 4192188 counting only the distinct ones).

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

Adding to 212211002011020 its reverse (20110200112212), we get a palindrome (232321202123232).

The spelling of 212211002011020 in words is "two hundred twelve trillion, two hundred eleven billion, two million, eleven thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1170487 2340974 3021691 3511461 4681948 5852435 6043382 7022922 9065073 11704870 12086764 14045844 15108455 17557305 18130146 23409740 30216910 35114610 36260292 45325365 60433820 70229220 90650730 181301460 3536850033517 7073700067034 10610550100551 14147400134068 17684250167585 21221100201102 35368500335170 42442200402204 53052750502755 70737000670340 106105501005510 212211002011020