12220884 has 36 divisors (see below), whose sum is σ = 33269236. Its totient is φ = 3760128.

The previous prime is 12220877. The next prime is 12220891. The reversal of 12220884 is 48802221.

It is an interprime number because it is at equal distance from previous prime (12220877) and next prime (12220891).

It can be written as a sum of positive squares in 2 ways, for example, as 4536900 + 7683984 = 2130^2 + 2772^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12589 + ... + 13524.

Almost surely, 2^12220884 is an apocalyptic number.

It is an amenable number.

12220884 is an abundant number, since it is smaller than the sum of its proper divisors (21048352).

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

12220884 is a wasteful number, since it uses less digits than its factorization.

12220884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26136 (or 26131 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 12220884 is about 3495.8380969376. The cubic root of 12220884 is about 230.3390337100.

The spelling of 12220884 in words is "twelve million, two hundred twenty thousand, eight hundred eighty-four".