12020299980 has 192 divisors, whose sum is σ = 37218424320. Its totient is φ = 2879944704.

The previous prime is 12020299943. The next prime is 12020299999. The reversal of 12020299980 is 8999202021.

It is a happy number.

It is a super-2 number, since 2×12020299980² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14857816 + ... + 14858624.

It is an arithmetic number, because the mean of its divisors is an integer number (193845960).

Almost surely, 2^12020299980 is an apocalyptic number.

12020299980 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 12020299980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18609212160).

12020299980 is an abundant number, since it is smaller than the sum of its proper divisors (25198124340).

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

12020299980 is a wasteful number, since it uses less digits than its factorization.

12020299980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1318 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The spelling of 12020299980 in words is "twelve billion, twenty million, two hundred ninety-nine thousand, nine hundred eighty".