22100212012 has 12 divisors (see below), whose sum is σ = 38739090880. Its totient is φ = 11031900336.

The previous prime is 22100212003. The next prime is 22100212027. The reversal of 22100212012 is 21021200122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22100211983 and 22100212001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4548687 + ... + 4553542.

Almost surely, 2^22100212012 is an apocalyptic number.

It is an amenable number.

22100212012 is a deficient number, since it is larger than the sum of its proper divisors (16638878868).

22100212012 is a wasteful number, since it uses less digits than its factorization.

22100212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9102840 (or 9102838 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22100212012 its reverse (21021200122), we get a palindrome (43121412134).

The spelling of 22100212012 in words is "twenty-two billion, one hundred million, two hundred twelve thousand, twelve".