21002010011112 has 32 divisors (see below), whose sum is σ = 56543873107680. Its totient is φ = 6462156926400.

The previous prime is 21002010011053. The next prime is 21002010011123. The reversal of 21002010011112 is 21111001020012.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33657067014 + ... + 33657067637.

It is an arithmetic number, because the mean of its divisors is an integer number (1766996034615).

Almost surely, 2^{21002010011112} is an apocalyptic number.

It is an amenable number.

21002010011112 is an abundant number, since it is smaller than the sum of its proper divisors (35541863096568).

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

21002010011112 is a wasteful number, since it uses less digits than its factorization.

21002010011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67314134673 (or 67314134669 counting only the distinct ones).

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

Adding to 21002010011112 its reverse (21111001020012), we get a palindrome (42113011031124).

The spelling of 21002010011112 in words is "twenty-one trillion, two billion, ten million, eleven thousand, one hundred twelve".