12020221204 has 12 divisors (see below), whose sum is σ = 21524582464. Its totient is φ = 5870340504.

The previous prime is 12020221183. The next prime is 12020221211. The reversal of 12020221204 is 40212202021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34942332 + ... + 34942675.

Almost surely, 2^12020221204 is an apocalyptic number.

It is an amenable number.

12020221204 is a deficient number, since it is larger than the sum of its proper divisors (9504361260).

12020221204 is a wasteful number, since it uses less digits than its factorization.

12020221204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69885054 (or 69885052 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12020221204 its reverse (40212202021), we get a palindrome (52232423225).

The spelling of 12020221204 in words is "twelve billion, twenty million, two hundred twenty-one thousand, two hundred four".