15012012 has 24 divisors (see below), whose sum is σ = 35509936. Its totient is φ = 4935168.

The previous prime is 15012007. The next prime is 15012013. The reversal of 15012012 is 21021051.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (15012013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7693 + ... + 9444.

Almost surely, 2^15012012 is an apocalyptic number.

15012012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15012012 is an abundant number, since it is smaller than the sum of its proper divisors (20497924).

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

15012012 is a wasteful number, since it uses less digits than its factorization.

15012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17217 (or 17215 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 15012012 is about 3874.5337784048. The cubic root of 15012012 is about 246.6870212892.

Adding to 15012012 its reverse (21021051), we get a palindrome (36033063).

The spelling of 15012012 in words is "fifteen million, twelve thousand, twelve".