12101880 has 64 divisors (see below), whose sum is σ = 41495040. Its totient is φ = 2765952.

The previous prime is 12101863. The next prime is 12101891. The reversal of 12101880 is 8810121.

12101880 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

12101880 is strictly pandigital in base 8.

It is a congruent number.

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, 6364 + ... + 8043.

It is an arithmetic number, because the mean of its divisors is an integer number (648360).

Almost surely, 2^12101880 is an apocalyptic number.

12101880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101880 is an abundant number, since it is smaller than the sum of its proper divisors (29393160).

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

12101880 is a wasteful number, since it uses less digits than its factorization.

12101880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14428 (or 14424 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 12101880 is about 3478.7756466895. The cubic root of 12101880 is about 229.5889317913.

The spelling of 12101880 in words is "twelve million, one hundred one thousand, eight hundred eighty".