13112212232 has 128 divisors (see below), whose sum is σ = 30051648000. Its totient is φ = 5351157504.

The previous prime is 13112212231. The next prime is 13112212261. The reversal of 13112212232 is 23221221131.

It is not an unprimeable number, because it can be changed into a prime (13112212231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23540498 + ... + 23541054.

It is an arithmetic number, because the mean of its divisors is an integer number (234778500).

Almost surely, 2^13112212232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13112212232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15025824000).

13112212232 is an abundant number, since it is smaller than the sum of its proper divisors (16939435768).

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

13112212232 is a wasteful number, since it uses less digits than its factorization.

13112212232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980 (or 962 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

Adding to 13112212232 its reverse (23221221131), we get a palindrome (36333433363).

The spelling of 13112212232 in words is "thirteen billion, one hundred twelve million, two hundred twelve thousand, two hundred thirty-two".