12020021199 has 12 divisors (see below), whose sum is σ = 17363203312. Its totient is φ = 8012908800.

The previous prime is 12020021179. The next prime is 12020021201. The reversal of 12020021199 is 99112002021.

It is not a de Polignac number, because 12020021199 - 2³³ = 3430086607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020021119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302319 + ... + 339759.

Almost surely, 2^12020021199 is an apocalyptic number.

12020021199 is a deficient number, since it is larger than the sum of its proper divisors (5343182113).

12020021199 is a wasteful number, since it uses less digits than its factorization.

12020021199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73118 (or 73115 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 12020021199 in words is "twelve billion, twenty million, twenty-one thousand, one hundred ninety-nine".