12215902 has 8 divisors (see below), whose sum is σ = 18955800. Its totient is φ = 5897304.

The previous prime is 12215899. The next prime is 12215933. The reversal of 12215902 is 20951221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 105252 + ... + 105367.

It is an arithmetic number, because the mean of its divisors is an integer number (2369475).

Almost surely, 2^12215902 is an apocalyptic number.

12215902 is a deficient number, since it is larger than the sum of its proper divisors (6739898).

12215902 is a wasteful number, since it uses less digits than its factorization.

12215902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210650.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 12215902 is about 3495.1254626980. The cubic root of 12215902 is about 230.3077292359.

The spelling of 12215902 in words is "twelve million, two hundred fifteen thousand, nine hundred two".