22120222194 has 36 divisors (see below), whose sum is σ = 55751990814. Its totient is φ = 6320063232.

The previous prime is 22120222181. The next prime is 22120222211. The reversal of 22120222194 is 49122202122.

It can be written as a sum of positive squares in only one way, i.e., 11938403169 + 10181819025 = 109263^2 + 100905^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12538927 + ... + 12540690.

Almost surely, 2^22120222194 is an apocalyptic number.

22120222194 is an abundant number, since it is smaller than the sum of its proper divisors (33631768620).

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

22120222194 is a wasteful number, since it uses less digits than its factorization.

22120222194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25079639 (or 25079629 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 22120222194 in words is "twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, one hundred ninety-four".