12122000012 has 12 divisors (see below), whose sum is σ = 21281712816. Its totient is φ = 6041510640.

The previous prime is 12121999999. The next prime is 12122000021. The reversal of 12122000012 is 21000022121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12121999957 and 12122000002.

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, 4870943 + ... + 4873430.

It is an arithmetic number, because the mean of its divisors is an integer number (1773476068).

Almost surely, 2^12122000012 is an apocalyptic number.

It is an amenable number.

12122000012 is a deficient number, since it is larger than the sum of its proper divisors (9159712804).

12122000012 is a wasteful number, since it uses less digits than its factorization.

12122000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9744688 (or 9744686 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12122000012 its reverse (21000022121), we get a palindrome (33122022133).

The spelling of 12122000012 in words is "twelve billion, one hundred twenty-two million, twelve", and thus it is an aban number.