12002109980 has 36 divisors (see below), whose sum is σ = 29319442488. Its totient is φ = 4115008800.

The previous prime is 12002109979. The next prime is 12002110039. The reversal of 12002109980 is 8990120021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6122546 + ... + 6124505.

It is an arithmetic number, because the mean of its divisors is an integer number (814428958).

Almost surely, 2^12002109980 is an apocalyptic number.

12002109980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002109980 is an abundant number, since it is smaller than the sum of its proper divisors (17317332508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12002109980 is a wasteful number, since it uses less digits than its factorization.

12002109980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12247074 (or 12247065 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 12002109980 in words is "twelve billion, two million, one hundred nine thousand, nine hundred eighty".