2402204121 has 10 divisors (see below), whose sum is σ = 3588477882. Its totient is φ = 1601469360.

The previous prime is 2402204087. The next prime is 2402204173. The reversal of 2402204121 is 1214022042.

It can be written as a sum of positive squares in only one way, i.e., 1229484096 + 1172720025 = 35064^2 + 34245^2 .

It is not a de Polignac number, because 2402204121 - 2²³ = 2393815513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2402204094 and 2402204103.

It is not an unprimeable number, because it can be changed into a prime (2402204221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 14828340 + ... + 14828501.

Almost surely, 2^2402204121 is an apocalyptic number.

It is an amenable number.

2402204121 is a deficient number, since it is larger than the sum of its proper divisors (1186273761).

2402204121 is an equidigital number, since it uses as much as digits as its factorization.

2402204121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29656853 (or 29656844 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2402204121 is about 49012.2854088646. The cubic root of 2402204121 is about 1339.2756389861.

Adding to 2402204121 its reverse (1214022042), we get a palindrome (3616226163).

The spelling of 2402204121 in words is "two billion, four hundred two million, two hundred four thousand, one hundred twenty-one".