12202002020121 has 64 divisors (see below), whose sum is σ = 18416593797120. Its totient is φ = 7145383633920.

The previous prime is 12202002020113. The next prime is 12202002020177. The reversal of 12202002020121 is 12102020020221.

It is not a de Polignac number, because 12202002020121 - 2³ = 12202002020113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12202002020121.

It is not an unprimeable number, because it can be changed into a prime (12202002020321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39413496 + ... + 39721878.

It is an arithmetic number, because the mean of its divisors is an integer number (287759278080).

Almost surely, 2^{12202002020121} is an apocalyptic number.

It is an amenable number.

12202002020121 is a deficient number, since it is larger than the sum of its proper divisors (6214591776999).

12202002020121 is a wasteful number, since it uses less digits than its factorization.

12202002020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309326.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12202002020121 its reverse (12102020020221), we get a palindrome (24304022040342).

The spelling of 12202002020121 in words is "twelve trillion, two hundred two billion, two million, twenty thousand, one hundred twenty-one".