22121192 has 16 divisors (see below), whose sum is σ = 41616960. Its totient is φ = 11023344.

The previous prime is 22121191. The next prime is 22121201. The reversal of 22121192 is 29112122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22121191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2048 + ... + 6959.

It is an arithmetic number, because the mean of its divisors is an integer number (2601060).

Almost surely, 2^22121192 is an apocalyptic number.

It is an amenable number.

22121192 is a deficient number, since it is larger than the sum of its proper divisors (19495768).

22121192 is a wasteful number, since it uses less digits than its factorization.

22121192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9320 (or 9316 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 22121192 is about 4703.3171273049. The cubic root of 22121192 is about 280.7175135080.

The spelling of 22121192 in words is "twenty-two million, one hundred twenty-one thousand, one hundred ninety-two".