13218101512 has 32 divisors (see below), whose sum is σ = 30899459520. Its totient is φ = 5149909440.

The previous prime is 13218101387. The next prime is 13218101527. The reversal of 13218101512 is 21510181231.

It is a super-2 number, since 2×13218101512² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10728363 + ... + 10729594.

It is an arithmetic number, because the mean of its divisors is an integer number (965608110).

Almost surely, 2^13218101512 is an apocalyptic number.

It is an amenable number.

13218101512 is an abundant number, since it is smaller than the sum of its proper divisors (17681358008).

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

13218101512 is a wasteful number, since it uses less digits than its factorization.

13218101512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21457981 (or 21457977 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 25.

Adding to 13218101512 its reverse (21510181231), we get a palindrome (34728282743).

The spelling of 13218101512 in words is "thirteen billion, two hundred eighteen million, one hundred one thousand, five hundred twelve".