12100988 has 12 divisors (see below), whose sum is σ = 21227640. Its totient is φ = 6035952.

The previous prime is 12100973. The next prime is 12100993. The reversal of 12100988 is 88900121.

It is a super-2 number, since 2×12100988² = 292867821152288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12100988.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1643 + ... + 5186.

It is an arithmetic number, because the mean of its divisors is an integer number (1768970).

Almost surely, 2^12100988 is an apocalyptic number.

It is an amenable number.

12100988 is a deficient number, since it is larger than the sum of its proper divisors (9126652).

12100988 is a wasteful number, since it uses less digits than its factorization.

12100988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276 (or 7274 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 12100988 is about 3478.6474383013. The cubic root of 12100988 is about 229.5832908397.

The spelling of 12100988 in words is "twelve million, one hundred thousand, nine hundred eighty-eight".