12202021120 has 72 divisors (see below), whose sum is σ = 29265534144. Its totient is φ = 4874483712.

The previous prime is 12202021081. The next prime is 12202021127. The reversal of 12202021120 is 2112020221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12202021120.

It is not an unprimeable number, because it can be changed into a prime (12202021127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052797 + ... + 1064323.

It is an arithmetic number, because the mean of its divisors is an integer number (406465752).

Almost surely, 2^12202021120 is an apocalyptic number.

12202021120 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 12202021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14632767072).

12202021120 is an abundant number, since it is smaller than the sum of its proper divisors (17063513024).

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

12202021120 is an equidigital number, since it uses as much as digits as its factorization.

12202021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12375 (or 12361 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12202021120 its reverse (2112020221), we get a palindrome (14314041341).

The spelling of 12202021120 in words is "twelve billion, two hundred two million, twenty-one thousand, one hundred twenty".