12020707220 has 24 divisors (see below), whose sum is σ = 25466883624. Its totient is φ = 4765730816.

The previous prime is 12020707217. The next prime is 12020707243. The reversal of 12020707220 is 2270702021.

It can be written as a sum of positive squares in 4 ways, for example, as 719741584 + 11300965636 = 26828^2 + 106306^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2657189 + ... + 2661708.

It is an arithmetic number, because the mean of its divisors is an integer number (1061120151).

Almost surely, 2^12020707220 is an apocalyptic number.

12020707220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020707220 is an abundant number, since it is smaller than the sum of its proper divisors (13446176404).

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

12020707220 is a wasteful number, since it uses less digits than its factorization.

12020707220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5319019 (or 5319017 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The spelling of 12020707220 in words is "twelve billion, twenty million, seven hundred seven thousand, two hundred twenty".