12200870 has 16 divisors (see below), whose sum is σ = 23958288. Its totient is φ = 4436640.

The previous prime is 12200857. The next prime is 12200897. The reversal of 12200870 is 7800221.

It is a super-2 number, since 2×12200870² = 297722457513800, which contains 22 as substring.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 55349 + ... + 55568.

It is an arithmetic number, because the mean of its divisors is an integer number (1497393).

Almost surely, 2^12200870 is an apocalyptic number.

12200870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12200870 is a deficient number, since it is larger than the sum of its proper divisors (11757418).

12200870 is a wasteful number, since it uses less digits than its factorization.

12200870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110935.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 12200870 is about 3492.9743772321. The cubic root of 12200870 is about 230.2132238177.

The spelling of 12200870 in words is "twelve million, two hundred thousand, eight hundred seventy".