12521536332 has 48 divisors (see below), whose sum is σ = 30774965760. Its totient is φ = 3951557568.

The previous prime is 12521536273. The next prime is 12521536333. The reversal of 12521536332 is 23363512521.

It is a super-2 number, since 2×12521536332² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12521536293 and 12521536302.

It is not an unprimeable number, because it can be changed into a prime (12521536333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343578 + ... + 378270.

It is an arithmetic number, because the mean of its divisors is an integer number (641145120).

Almost surely, 2^12521536332 is an apocalyptic number.

12521536332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12521536332 is an abundant number, since it is smaller than the sum of its proper divisors (18253429428).

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

12521536332 is a wasteful number, since it uses less digits than its factorization.

12521536332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36302 (or 36300 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

The spelling of 12521536332 in words is "twelve billion, five hundred twenty-one million, five hundred thirty-six thousand, three hundred thirty-two".