12206920 has 32 divisors (see below), whose sum is σ = 29963520. Its totient is φ = 4438720.

The previous prime is 12206899. The next prime is 12206939. The reversal of 12206920 is 2960221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12206891 and 12206900.

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, 13432 + ... + 14311.

It is an arithmetic number, because the mean of its divisors is an integer number (936360).

Almost surely, 2^12206920 is an apocalyptic number.

12206920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12206920 is an abundant number, since it is smaller than the sum of its proper divisors (17756600).

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

12206920 is a wasteful number, since it uses less digits than its factorization.

12206920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27765 (or 27761 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 12206920 is about 3493.8402940031. The cubic root of 12206920 is about 230.2512691881.

The spelling of 12206920 in words is "twelve million, two hundred six thousand, nine hundred twenty".