13156022112 has 24 divisors (see below), whose sum is σ = 34534558296. Its totient is φ = 4385340672.

The previous prime is 13156022093. The next prime is 13156022119. The reversal of 13156022112 is 21122065131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×13156022112² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13156022119) 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, 68520853 + ... + 68521044.

It is an arithmetic number, because the mean of its divisors is an integer number (1438939929).

Almost surely, 2^13156022112 is an apocalyptic number.

13156022112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13156022112 is an abundant number, since it is smaller than the sum of its proper divisors (21378536184).

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

13156022112 is a wasteful number, since it uses less digits than its factorization.

13156022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137041910 (or 137041902 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 13156022112 its reverse (21122065131), we get a palindrome (34278087243).

The spelling of 13156022112 in words is "thirteen billion, one hundred fifty-six million, twenty-two thousand, one hundred twelve".