22121612084 has 24 divisors (see below), whose sum is σ = 45480798048. Its totient is φ = 9281795040.

The previous prime is 22121612069. The next prime is 22121612111. The reversal of 22121612084 is 48021612122.

It is a congruent number.

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, 19336502 + ... + 19337645.

It is an arithmetic number, because the mean of its divisors is an integer number (1895033252).

Almost surely, 2^22121612084 is an apocalyptic number.

It is an amenable number.

22121612084 is an abundant number, since it is smaller than the sum of its proper divisors (23359185964).

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

22121612084 is a wasteful number, since it uses less digits than its factorization.

22121612084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38674175 (or 38674173 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The spelling of 22121612084 in words is "twenty-two billion, one hundred twenty-one million, six hundred twelve thousand, eighty-four".