22012122290 has 32 divisors (see below), whose sum is σ = 39725674560. Its totient is φ = 8781804864.

The previous prime is 22012122289. The next prime is 22012122323. The reversal of 22012122290 is 9222121022.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10720904 + ... + 10722956.

It is an arithmetic number, because the mean of its divisors is an integer number (1241427330).

Almost surely, 2^22012122290 is an apocalyptic number.

22012122290 is a deficient number, since it is larger than the sum of its proper divisors (17713552270).

22012122290 is a wasteful number, since it uses less digits than its factorization.

22012122290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 22012122290 in words is "twenty-two billion, twelve million, one hundred twenty-two thousand, two hundred ninety".