12213013232 has 60 divisors (see below), whose sum is σ = 27793439856. Its totient is φ = 5183297280.

The previous prime is 12213013217. The next prime is 12213013247. The reversal of 12213013232 is 23231031221.

It is an interprime number because it is at equal distance from previous prime (12213013217) and next prime (12213013247).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5132 + ... + 156372.

Almost surely, 2^12213013232 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 12213013232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13896719928).

12213013232 is an abundant number, since it is smaller than the sum of its proper divisors (15580426624).

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

12213013232 is a wasteful number, since it uses less digits than its factorization.

12213013232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151366 (or 151353 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12213013232 its reverse (23231031221), we get a palindrome (35444044453).

The spelling of 12213013232 in words is "twelve billion, two hundred thirteen million, thirteen thousand, two hundred thirty-two".