12150214520 has 16 divisors (see below), whose sum is σ = 27337982760. Its totient is φ = 4860085792.

The previous prime is 12150214519. The next prime is 12150214529. The reversal of 12150214520 is 2541205121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12150214529) 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, 151877642 + ... + 151877721.

Almost surely, 2^12150214520 is an apocalyptic number.

12150214520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12150214520 is an abundant number, since it is smaller than the sum of its proper divisors (15187768240).

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

12150214520 is a wasteful number, since it uses less digits than its factorization.

12150214520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303755374 (or 303755370 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 12150214520 its reverse (2541205121), we get a palindrome (14691419641).

The spelling of 12150214520 in words is "twelve billion, one hundred fifty million, two hundred fourteen thousand, five hundred twenty".