22112121194 has 16 divisors (see below), whose sum is σ = 33299224200. Its totient is φ = 11012461824.

The previous prime is 22112121181. The next prime is 22112121197. The reversal of 22112121194 is 49112121122.

It can be written as a sum of positive squares in 4 ways, for example, as 21991407025 + 120714169 = 148295^2 + 10987^2 .

It is not an unprimeable number, because it can be changed into a prime (22112121197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533822 + ... + 573750.

Almost surely, 2^22112121194 is an apocalyptic number.

22112121194 is a deficient number, since it is larger than the sum of its proper divisors (11187103006).

22112121194 is a wasteful number, since it uses less digits than its factorization.

22112121194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41017.

The product of its digits is 576, while the sum is 26.

The spelling of 22112121194 in words is "twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, one hundred ninety-four".