202100100021010 has 128 divisors (see below), whose sum is σ = 378074249625600. Its totient is φ = 77728673917440.

The previous prime is 202100100020981. The next prime is 202100100021031. The reversal of 202100100021010 is 10120001001202.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 45446388607 + ... + 45446393053.

It is an arithmetic number, because the mean of its divisors is an integer number (2953705075200).

Almost surely, 2^{202100100021010} is an apocalyptic number.

202100100021010 is a deficient number, since it is larger than the sum of its proper divisors (175974149604590).

202100100021010 is a wasteful number, since it uses less digits than its factorization.

202100100021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8256.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 202100100021010 its reverse (10120001001202), we get a palindrome (212220101022212).

The spelling of 202100100021010 in words is "two hundred two trillion, one hundred billion, one hundred million, twenty-one thousand, ten".