20102111001210 has 96 divisors (see below), whose sum is σ = 57638617822080. Its totient is φ = 4470585291648.

The previous prime is 20102111001157. The next prime is 20102111001233. The reversal of 20102111001210 is 1210011120102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 184741630 + ... + 184850409.

It is an arithmetic number, because the mean of its divisors is an integer number (600402268980).

Almost surely, 2^{20102111001210} is an apocalyptic number.

20102111001210 is an abundant number, since it is smaller than the sum of its proper divisors (37536506820870).

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

20102111001210 is a wasteful number, since it uses less digits than its factorization.

20102111001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369592100 (or 369592093 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20102111001210 its reverse (1210011120102), we get a palindrome (21312122121312).

The spelling of 20102111001210 in words is "twenty trillion, one hundred two billion, one hundred eleven million, one thousand, two hundred ten".