102012199980 has 48 divisors (see below), whose sum is σ = 291711490560. Its totient is φ = 26624459968.

The previous prime is 102012199957. The next prime is 102012200011. The reversal of 102012199980 is 89991210201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18084450 + ... + 18090089.

It is an arithmetic number, because the mean of its divisors is an integer number (6077322720).

Almost surely, 2^102012199980 is an apocalyptic number.

102012199980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102012199980 is an abundant number, since it is smaller than the sum of its proper divisors (189699290580).

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

102012199980 is a wasteful number, since it uses less digits than its factorization.

102012199980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36174598 (or 36174596 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 42.

The spelling of 102012199980 in words is "one hundred two billion, twelve million, one hundred ninety-nine thousand, nine hundred eighty".