12220120000 has 140 divisors (see below), whose sum is σ = 33057836856. Its totient is φ = 4443520000.

The previous prime is 12220119973. The next prime is 12220120007. The reversal of 12220120000 is 2102221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220120007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 426114 + ... + 453886.

Almost surely, 2^12220120000 is an apocalyptic number.

12220120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12220120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16528918428).

12220120000 is an abundant number, since it is smaller than the sum of its proper divisors (20837716856).

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

12220120000 is an equidigital number, since it uses as much as digits as its factorization.

12220120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27816 (or 27791 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12220120000 its reverse (2102221), we get a palindrome (12222222221).

The spelling of 12220120000 in words is "twelve billion, two hundred twenty million, one hundred twenty thousand".