12228914972 has 6 divisors (see below), whose sum is σ = 21400601208. Its totient is φ = 6114457484.

The previous prime is 12228914947. The next prime is 12228914977. The reversal of 12228914972 is 27941982221.

It is a super-2 number, since 2×12228914972² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12228914977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1528614368 + ... + 1528614375.

It is an arithmetic number, because the mean of its divisors is an integer number (3566766868).

Almost surely, 2^12228914972 is an apocalyptic number.

It is an amenable number.

12228914972 is a deficient number, since it is larger than the sum of its proper divisors (9171686236).

12228914972 is a wasteful number, since it uses less digits than its factorization.

12228914972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057228747 (or 3057228745 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The spelling of 12228914972 in words is "twelve billion, two hundred twenty-eight million, nine hundred fourteen thousand, nine hundred seventy-two".