12220888 has 16 divisors (see below), whose sum is σ = 22967280. Its totient is φ = 6096288.

The previous prime is 12220877. The next prime is 12220891. The reversal of 12220888 is 88802221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2506 + ... + 5542.

It is an arithmetic number, because the mean of its divisors is an integer number (1435455).

Almost surely, 2^12220888 is an apocalyptic number.

It is an amenable number.

12220888 is a deficient number, since it is larger than the sum of its proper divisors (10746392).

12220888 is a wasteful number, since it uses less digits than its factorization.

12220888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546 (or 3542 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 12220888 is about 3495.8386690464. The cubic root of 12220888 is about 230.3390588406.

It can be divided in two parts, 12 and 220888, that added together give a square (220900 = 470²).

The spelling of 12220888 in words is "twelve million, two hundred twenty thousand, eight hundred eighty-eight".