12215104 has 28 divisors (see below), whose sum is σ = 26444448. Its totient is φ = 5552000.

The previous prime is 12215101. The next prime is 12215123. The reversal of 12215104 is 40151221.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12215101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7972 + ... + 9379.

Almost surely, 2^12215104 is an apocalyptic number.

It is an amenable number.

12215104 is an abundant number, since it is smaller than the sum of its proper divisors (14229344).

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

12215104 is a wasteful number, since it uses less digits than its factorization.

12215104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17374 (or 17364 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 12215104 is about 3495.0113018415. The cubic root of 12215104 is about 230.3027141997.

Adding to 12215104 its reverse (40151221), we get a palindrome (52366325).

The spelling of 12215104 in words is "twelve million, two hundred fifteen thousand, one hundred four".