12102112209990 has 64 divisors (see below), whose sum is σ = 33353189648640. Its totient is φ = 2779432467840.

The previous prime is 12102112209989. The next prime is 12102112210021. The reversal of 12102112209990 is 9990221120121.

It is a happy number.

It is a super-2 number, since 2×12102112209990² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 965074449 + ... + 965086988.

It is an arithmetic number, because the mean of its divisors is an integer number (521143588260).

Almost surely, 2^{12102112209990} is an apocalyptic number.

12102112209990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102112209990 is an abundant number, since it is smaller than the sum of its proper divisors (21251077438650).

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

12102112209990 is a wasteful number, since it uses less digits than its factorization.

12102112209990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930161477.

The product of its (nonzero) digits is 11664, while the sum is 39.

The spelling of 12102112209990 in words is "twelve trillion, one hundred two billion, one hundred twelve million, two hundred nine thousand, nine hundred ninety".