22221232112 has 10 divisors (see below), whose sum is σ = 43053637248. Its totient is φ = 11110616048.

The previous prime is 22221232097. The next prime is 22221232129. The reversal of 22221232112 is 21123212222.

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 as a sum of consecutive naturals, namely, 694413488 + ... + 694413519.

Almost surely, 2^22221232112 is an apocalyptic number.

It is an amenable number.

22221232112 is a deficient number, since it is larger than the sum of its proper divisors (20832405136).

22221232112 is a wasteful number, since it uses less digits than its factorization.

22221232112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388827015 (or 1388827009 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

Adding to 22221232112 its reverse (21123212222), we get a palindrome (43344444334).

The spelling of 22221232112 in words is "twenty-two billion, two hundred twenty-one million, two hundred thirty-two thousand, one hundred twelve".