12219888 has 40 divisors (see below), whose sum is σ = 33232000. Its totient is φ = 3858624.

The previous prime is 12219871. The next prime is 12219901. The reversal of 12219888 is 88891221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5788 + ... + 7611.

It is an arithmetic number, because the mean of its divisors is an integer number (830800).

Almost surely, 2^12219888 is an apocalyptic number.

It is an amenable number.

12219888 is an abundant number, since it is smaller than the sum of its proper divisors (21012112).

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

12219888 is a wasteful number, since it uses less digits than its factorization.

12219888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13429 (or 13423 counting only the distinct ones).

The product of its digits is 18432, while the sum is 39.

The square root of 12219888 is about 3495.6956389251. The cubic root of 12219888 is about 230.3327760091.

The spelling of 12219888 in words is "twelve million, two hundred nineteen thousand, eight hundred eighty-eight".