22212002012 has 12 divisors (see below), whose sum is σ = 39255865656. Its totient is φ = 10996040400.

The previous prime is 22212001993. The next prime is 22212002039. The reversal of 22212002012 is 21020021222.

It is a congruent number.

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, 27489698 + ... + 27490505.

It is an arithmetic number, because the mean of its divisors is an integer number (3271322138).

Almost surely, 2^22212002012 is an apocalyptic number.

It is an amenable number.

22212002012 is a deficient number, since it is larger than the sum of its proper divisors (17043863644).

22212002012 is a wasteful number, since it uses less digits than its factorization.

22212002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54980308 (or 54980306 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22212002012 its reverse (21020021222), we get a palindrome (43232023234).

The spelling of 22212002012 in words is "twenty-two billion, two hundred twelve million, two thousand, twelve".