13220101312 has 56 divisors (see below), whose sum is σ = 28632497472. Its totient is φ = 6006201600.

The previous prime is 13220101277. The next prime is 13220101313. The reversal of 13220101312 is 21310102231.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (13220101313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2167387 + ... + 2173477.

Almost surely, 2^13220101312 is an apocalyptic number.

It is an amenable number.

13220101312 is an abundant number, since it is smaller than the sum of its proper divisors (15412396160).

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

13220101312 is a wasteful number, since it uses less digits than its factorization.

13220101312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9197 (or 9187 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13220101312 its reverse (21310102231), we get a palindrome (34530203543).

The spelling of 13220101312 in words is "thirteen billion, two hundred twenty million, one hundred one thousand, three hundred twelve".