22112001222 has 32 divisors (see below), whose sum is σ = 48053253120. Its totient is φ = 6757486560.

The previous prime is 22112001209. The next prime is 22112001259. The reversal of 22112001222 is 22210021122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3124933 + ... + 3132000.

It is an arithmetic number, because the mean of its divisors is an integer number (1501664160).

Almost surely, 2^22112001222 is an apocalyptic number.

22112001222 is an abundant number, since it is smaller than the sum of its proper divisors (25941251898).

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

22112001222 is a wasteful number, since it uses less digits than its factorization.

22112001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6256988.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22112001222 its reverse (22210021122), we get a palindrome (44322022344).

The spelling of 22112001222 in words is "twenty-two billion, one hundred twelve million, one thousand, two hundred twenty-two".