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20012201000220 = 223511134156888399
BaseRepresentation
bin1001000110011011101000…
…01000011011110100011100
32121212010222200210112110210
410203031310020123310130
510110334441424001340
6110321251143532420
74133555665560042
oct443156410336434
977763880715423
1020012201000220
1164161438250a0
1222b25b975a110
13b221b0c92bb0
144d284a83c392
1524a86b0ac180
hex12337421bd1c

20012201000220 has 192 divisors, whose sum is σ = 67435964467200. Its totient is φ = 4369028966400.

The previous prime is 20012201000219. The next prime is 20012201000251. The reversal of 20012201000220 is 2200010221002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20012201000196 and 20012201000205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28092420 + ... + 28795979.

It is an arithmetic number, because the mean of its divisors is an integer number (351228981600).

Almost surely, 220012201000220 is an apocalyptic number.

20012201000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012201000220 is an abundant number, since it is smaller than the sum of its proper divisors (47423763466980).

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

20012201000220 is a wasteful number, since it uses less digits than its factorization.

20012201000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56888476 (or 56888474 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20012201000220 its reverse (2200010221002), we get a palindrome (22212211221222).

The spelling of 20012201000220 in words is "twenty trillion, twelve billion, two hundred one million, two hundred twenty", and thus it is an aban number.