12220123032 has 96 divisors (see below), whose sum is σ = 36174181680. Its totient is φ = 3703898880.

The previous prime is 12220123009. The next prime is 12220123061. The reversal of 12220123032 is 23032102221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12220122996 and 12220123014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34719 + ... + 160142.

Almost surely, 2^12220123032 is an apocalyptic number.

12220123032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12220123032 is an abundant number, since it is smaller than the sum of its proper divisors (23954058648).

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

12220123032 is a wasteful number, since it uses less digits than its factorization.

12220123032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194953 (or 194946 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12220123032 its reverse (23032102221), we get a palindrome (35252225253).

The spelling of 12220123032 in words is "twelve billion, two hundred twenty million, one hundred twenty-three thousand, thirty-two".