15212242180 has 12 divisors (see below), whose sum is σ = 31945708620. Its totient is φ = 6084896864.

The previous prime is 15212242163. The next prime is 15212242189. The reversal of 15212242180 is 8124221251.

It can be written as a sum of positive squares in 2 ways, for example, as 7332839424 + 7879402756 = 85632^2 + 88766^2 .

It is not an unprimeable number, because it can be changed into a prime (15212242189) 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, 380306035 + ... + 380306074.

It is an arithmetic number, because the mean of its divisors is an integer number (2662142385).

Almost surely, 2^15212242180 is an apocalyptic number.

15212242180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15212242180 is an abundant number, since it is smaller than the sum of its proper divisors (16733466440).

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

15212242180 is a wasteful number, since it uses less digits than its factorization.

15212242180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760612118 (or 760612116 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The spelling of 15212242180 in words is "fifteen billion, two hundred twelve million, two hundred forty-two thousand, one hundred eighty".