22120112212 has 48 divisors (see below), whose sum is σ = 43687957824. Its totient is φ = 9712160000.

The previous prime is 22120112167. The next prime is 22120112219. The reversal of 22120112212 is 21221102122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120112219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121503 + ... + 242905.

It is an arithmetic number, because the mean of its divisors is an integer number (910165788).

Almost surely, 2^22120112212 is an apocalyptic number.

22120112212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22120112212 is a deficient number, since it is larger than the sum of its proper divisors (21567845612).

22120112212 is a wasteful number, since it uses less digits than its factorization.

22120112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121560 (or 121558 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22120112212 its reverse (21221102122), we get a palindrome (43341214334).

The spelling of 22120112212 in words is "twenty-two billion, one hundred twenty million, one hundred twelve thousand, two hundred twelve".