22144002212 has 12 divisors (see below), whose sum is σ = 40002068736. Its totient is φ = 10714839720.

The previous prime is 22144002193. The next prime is 22144002229. The reversal of 22144002212 is 21220044122.

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, 89290208 + ... + 89290455.

It is an arithmetic number, because the mean of its divisors is an integer number (3333505728).

Almost surely, 2^22144002212 is an apocalyptic number.

It is an amenable number.

22144002212 is a deficient number, since it is larger than the sum of its proper divisors (17858066524).

22144002212 is a wasteful number, since it uses less digits than its factorization.

22144002212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178580698 (or 178580696 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22144002212 its reverse (21220044122), we get a palindrome (43364046334).

The spelling of 22144002212 in words is "twenty-two billion, one hundred forty-four million, two thousand, two hundred twelve".