12020505224 has 64 divisors (see below), whose sum is σ = 27753411840. Its totient is φ = 4753002240.

The previous prime is 12020505193. The next prime is 12020505241. The reversal of 12020505224 is 42250502021.

It is a super-2 number, since 2×12020505224² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12020505224.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2575517 + ... + 2580179.

It is an arithmetic number, because the mean of its divisors is an integer number (433647060).

Almost surely, 2^12020505224 is an apocalyptic number.

12020505224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12020505224 is an abundant number, since it is smaller than the sum of its proper divisors (15732906616).

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

12020505224 is a wasteful number, since it uses less digits than its factorization.

12020505224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8230 (or 8226 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The spelling of 12020505224 in words is "twelve billion, twenty million, five hundred five thousand, two hundred twenty-four".