22442400212 has 36 divisors (see below), whose sum is σ = 40694351040. Its totient is φ = 10827894672.

The previous prime is 22442400191. The next prime is 22442400223. The reversal of 22442400212 is 21200424422.

It is a super-2 number, since 2×22442400212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 595589 + ... + 632147.

It is an arithmetic number, because the mean of its divisors is an integer number (1130398640).

Almost surely, 2^22442400212 is an apocalyptic number.

It is an amenable number.

22442400212 is a deficient number, since it is larger than the sum of its proper divisors (18251950828).

22442400212 is a wasteful number, since it uses less digits than its factorization.

22442400212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36732 (or 36687 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 22442400212 its reverse (21200424422), we get a palindrome (43642824634).

The spelling of 22442400212 in words is "twenty-two billion, four hundred forty-two million, four hundred thousand, two hundred twelve".