12021020202 has 96 divisors (see below), whose sum is σ = 25501207680. Its totient is φ = 3776774400.

The previous prime is 12021020197. The next prime is 12021020239. The reversal of 12021020202 is 20202012021.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52493424 + ... + 52493652.

It is an arithmetic number, because the mean of its divisors is an integer number (265637580).

Almost surely, 2^12021020202 is an apocalyptic number.

12021020202 is an abundant number, since it is smaller than the sum of its proper divisors (13480187478).

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

12021020202 is a wasteful number, since it uses less digits than its factorization.

12021020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12021020202 its reverse (20202012021), we get a palindrome (32223032223).

The spelling of 12021020202 in words is "twelve billion, twenty-one million, twenty thousand, two hundred two".