12902220 has 48 divisors (see below), whose sum is σ = 40141920. Its totient is φ = 3440448.

The previous prime is 12902203. The next prime is 12902237. The reversal of 12902220 is 2220921.

It is an interprime number because it is at equal distance from previous prime (12902203) and next prime (12902237).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12902193 and 12902202.

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 15 ways as a sum of consecutive naturals, for example, 11407 + ... + 12486.

It is an arithmetic number, because the mean of its divisors is an integer number (836290).

Almost surely, 2^12902220 is an apocalyptic number.

12902220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12902220 is an abundant number, since it is smaller than the sum of its proper divisors (27239700).

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

12902220 is a wasteful number, since it uses less digits than its factorization.

12902220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23911 (or 23903 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12902220 is about 3591.9660354742. The cubic root of 12902220 is about 234.5424627181.

The spelling of 12902220 in words is "twelve million, nine hundred two thousand, two hundred twenty".