12102201002020 has 12 divisors (see below), whose sum is σ = 25414622104284. Its totient is φ = 4840880400800.

The previous prime is 12102201001981. The next prime is 12102201002071. The reversal of 12102201002020 is 2020010220121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8201797198884 + 3900403803136 = 2863878^2 + 1974944^2 .

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, 302555025031 + ... + 302555025070.

It is an arithmetic number, because the mean of its divisors is an integer number (2117885175357).

Almost surely, 2^{12102201002020} is an apocalyptic number.

12102201002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102201002020 is an abundant number, since it is smaller than the sum of its proper divisors (13312421102264).

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

12102201002020 is a wasteful number, since it uses less digits than its factorization.

12102201002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605110050110 (or 605110050108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12102201002020 its reverse (2020010220121), we get a palindrome (14122211222141).

The spelling of 12102201002020 in words is "twelve trillion, one hundred two billion, two hundred one million, two thousand, twenty".