12220292 has 12 divisors (see below), whose sum is σ = 24440640. Its totient is φ = 5237256.

The previous prime is 12220277. The next prime is 12220301. The reversal of 12220292 is 29202221.

12220292 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218192 + ... + 218247.

It is an arithmetic number, because the mean of its divisors is an integer number (2036720).

Almost surely, 2^12220292 is an apocalyptic number.

It is an amenable number.

12220292 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12220292 is a wasteful number, since it uses less digits than its factorization.

12220292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436450 (or 436448 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12220292 is about 3495.7534237987. The cubic root of 12220292 is about 230.3353143143.

The spelling of 12220292 in words is "twelve million, two hundred twenty thousand, two hundred ninety-two".