12220386 has 16 divisors (see below), whose sum is σ = 25229568. Its totient is φ = 3942000.

The previous prime is 12220361. The next prime is 12220393. The reversal of 12220386 is 68302221.

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, 32665 + ... + 33036.

It is an arithmetic number, because the mean of its divisors is an integer number (1576848).

Almost surely, 2^12220386 is an apocalyptic number.

12220386 is an abundant number, since it is smaller than the sum of its proper divisors (13009182).

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

12220386 is a wasteful number, since it uses less digits than its factorization.

12220386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65737.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 12220386 is about 3495.7668686570. The cubic root of 12220386 is about 230.3359049020.

The spelling of 12220386 in words is "twelve million, two hundred twenty thousand, three hundred eighty-six".