21200022111112 has 64 divisors (see below), whose sum is σ = 42951677630400. Its totient is φ = 9751731575040.

The previous prime is 21200022111071. The next prime is 21200022111131. The reversal of 21200022111112 is 21111122000212.

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, 364301314 + ... + 364359502.

It is an arithmetic number, because the mean of its divisors is an integer number (671119962975).

Almost surely, 2^{21200022111112} is an apocalyptic number.

It is an amenable number.

21200022111112 is an abundant number, since it is smaller than the sum of its proper divisors (21751655519288).

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

21200022111112 is a wasteful number, since it uses less digits than its factorization.

21200022111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69926 (or 69922 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21200022111112 its reverse (21111122000212), we get a palindrome (42311144111324).

The spelling of 21200022111112 in words is "twenty-one trillion, two hundred billion, twenty-two million, one hundred eleven thousand, one hundred twelve".