12210860 has 12 divisors (see below), whose sum is σ = 25642848. Its totient is φ = 4884336.

The previous prime is 12210857. The next prime is 12210871. The reversal of 12210860 is 6801221.

12210860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 610543 = 12210860 / (1 + 2 + 2 + 1 + 0 + 8 + 6 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305252 + ... + 305291.

It is an arithmetic number, because the mean of its divisors is an integer number (2136904).

Almost surely, 2^12210860 is an apocalyptic number.

12210860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210860 is an abundant number, since it is smaller than the sum of its proper divisors (13431988).

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

12210860 is a wasteful number, since it uses less digits than its factorization.

12210860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610552 (or 610550 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 12210860 is about 3494.4040979829. The cubic root of 12210860 is about 230.2760390841.

The spelling of 12210860 in words is "twelve million, two hundred ten thousand, eight hundred sixty".