12202400121 has 8 divisors (see below), whose sum is σ = 16648236000. Its totient is φ = 7945748832.

The previous prime is 12202400117. The next prime is 12202400123. The reversal of 12202400121 is 12100420221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12202400121 - 2² = 12202400117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12202400121.

It is not an unprimeable number, because it can be changed into a prime (12202400123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47295996 + ... + 47296253.

It is an arithmetic number, because the mean of its divisors is an integer number (2081029500).

Almost surely, 2^12202400121 is an apocalyptic number.

It is an amenable number.

12202400121 is a deficient number, since it is larger than the sum of its proper divisors (4445835879).

12202400121 is an equidigital number, since it uses as much as digits as its factorization.

12202400121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94592295.

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

Adding to 12202400121 its reverse (12100420221), we get a palindrome (24302820342).

The spelling of 12202400121 in words is "twelve billion, two hundred two million, four hundred thousand, one hundred twenty-one".