21010022010102 has 32 divisors (see below), whose sum is σ = 43471110551904. Its totient is φ = 6764878688000.

The previous prime is 21010022010091. The next prime is 21010022010127. The reversal of 21010022010102 is 20101022001012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422780073 + ... + 422829764.

It is an arithmetic number, because the mean of its divisors is an integer number (1358472204747).

Almost surely, 2^{21010022010102} is an apocalyptic number.

21010022010102 is an abundant number, since it is smaller than the sum of its proper divisors (22461088541802).

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

21010022010102 is a wasteful number, since it uses less digits than its factorization.

21010022010102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845609984.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21010022010102 its reverse (20101022001012), we get a palindrome (41111044011114).

The spelling of 21010022010102 in words is "twenty-one trillion, ten billion, twenty-two million, ten thousand, one hundred two".