22112223312 has 40 divisors (see below), whose sum is σ = 57240600256. Its totient is φ = 7355598336.

The previous prime is 22112223281. The next prime is 22112223349. The reversal of 22112223312 is 21332221122.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449593 + ... + 496344.

Almost surely, 2^22112223312 is an apocalyptic number.

It is an amenable number.

22112223312 is an abundant number, since it is smaller than the sum of its proper divisors (35128376944).

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

22112223312 is a wasteful number, since it uses less digits than its factorization.

22112223312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946435 (or 946429 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

Adding to 22112223312 its reverse (21332221122), we get a palindrome (43444444434).

The spelling of 22112223312 in words is "twenty-two billion, one hundred twelve million, two hundred twenty-three thousand, three hundred twelve".