12120100012 has 6 divisors (see below), whose sum is σ = 21210175028. Its totient is φ = 6060050004.

The previous prime is 12120100009. The next prime is 12120100021. The reversal of 12120100012 is 21000102121.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515012498 + ... + 1515012505.

Almost surely, 2^12120100012 is an apocalyptic number.

It is an amenable number.

12120100012 is a deficient number, since it is larger than the sum of its proper divisors (9090075016).

12120100012 is a wasteful number, since it uses less digits than its factorization.

12120100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030025007 (or 3030025005 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12120100012 its reverse (21000102121), we get a palindrome (33120202133).

The spelling of 12120100012 in words is "twelve billion, one hundred twenty million, one hundred thousand, twelve".