22122202194 has 32 divisors (see below), whose sum is σ = 51297863040. Its totient is φ = 7053455376.

The previous prime is 22122202183. The next prime is 22122202199. The reversal of 22122202194 is 49120222122.

22122202194 is a `hidden beast` number, since 221 + 2 + 220 + 219 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22122202199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8904637 + ... + 8907120.

It is an arithmetic number, because the mean of its divisors is an integer number (1603058220).

Almost surely, 2^22122202194 is an apocalyptic number.

22122202194 is an abundant number, since it is smaller than the sum of its proper divisors (29175660846).

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

22122202194 is a wasteful number, since it uses less digits than its factorization.

22122202194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17811791 (or 17811785 counting only the distinct ones).

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

The spelling of 22122202194 in words is "twenty-two billion, one hundred twenty-two million, two hundred two thousand, one hundred ninety-four".