13521232201212 has 72 divisors (see below), whose sum is σ = 34292222022240. Its totient is φ = 4492107210240.

The previous prime is 13521232201187. The next prime is 13521232201247. The reversal of 13521232201212 is 21210223212531.

13521232201212 is a `hidden beast` number, since 1 + 3 + 5 + 212 + 32 + 201 + 212 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93779137 + ... + 93923207.

It is an arithmetic number, because the mean of its divisors is an integer number (476280861420).

Almost surely, 2^{13521232201212} is an apocalyptic number.

13521232201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13521232201212 is an abundant number, since it is smaller than the sum of its proper divisors (20770989821028).

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

13521232201212 is a wasteful number, since it uses less digits than its factorization.

13521232201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152723 (or 152718 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 13521232201212 its reverse (21210223212531), we get a palindrome (34731455413743).

The spelling of 13521232201212 in words is "thirteen trillion, five hundred twenty-one billion, two hundred thirty-two million, two hundred one thousand, two hundred twelve".