12220584 has 32 divisors (see below), whose sum is σ = 30660000. Its totient is φ = 4059072.

The previous prime is 12220573. The next prime is 12220601. The reversal of 12220584 is 48502221.

12220584 is digitally balanced in base 2, because in such base 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 (24).

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, 7647 + ... + 9105.

It is an arithmetic number, because the mean of its divisors is an integer number (958125).

Almost surely, 2^12220584 is an apocalyptic number.

It is an amenable number.

12220584 is an abundant number, since it is smaller than the sum of its proper divisors (18439416).

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

12220584 is a wasteful number, since it uses less digits than its factorization.

12220584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817 (or 1813 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 12220584 is about 3495.7951885086. The cubic root of 12220584 is about 230.3371488961.

It can be divided in two parts, 122 and 20584, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 12220584 in words is "twelve million, two hundred twenty thousand, five hundred eighty-four".