21102011020112 has 80 divisors (see below), whose sum is σ = 44654429326464. Its totient is φ = 9580548096000.

The previous prime is 21102011020109. The next prime is 21102011020171.

21102011020112 is nontrivially palindromic in base 10.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 865143437 + ... + 865167827.

Almost surely, 2^{21102011020112} is an apocalyptic number.

21102011020112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21102011020112 is an abundant number, since it is smaller than the sum of its proper divisors (23552418306352).

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

21102011020112 is a wasteful number, since it uses less digits than its factorization.

21102011020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29988 (or 29982 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

It can be divided in two parts, 2110201 and 1020112, that added together give a palindrome (3130313).

The spelling of 21102011020112 in words is "twenty-one trillion, one hundred two billion, eleven million, twenty thousand, one hundred twelve".