22120112012 has 12 divisors (see below), whose sum is σ = 39440577456. Its totient is φ = 10851375600.

The previous prime is 22120111973. The next prime is 22120112017. The reversal of 22120112012 is 21021102122.

It is not an unprimeable number, because it can be changed into a prime (22120112017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52169864 + ... + 52170287.

It is an arithmetic number, because the mean of its divisors is an integer number (3286714788).

Almost surely, 2^22120112012 is an apocalyptic number.

It is an amenable number.

22120112012 is a deficient number, since it is larger than the sum of its proper divisors (17320465444).

22120112012 is a wasteful number, since it uses less digits than its factorization.

22120112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104340208 (or 104340206 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22120112012 its reverse (21021102122), we get a palindrome (43141214134).

The spelling of 22120112012 in words is "twenty-two billion, one hundred twenty million, one hundred twelve thousand, twelve".