2204836121 has 2 divisors, whose sum is σ = 2204836122. Its totient is φ = 2204836120.

The previous prime is 2204836111. The next prime is 2204836141. The reversal of 2204836121 is 1216384022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1184736400 + 1020099721 = 34420^2 + 31939^2 .

It is a cyclic number.

It is not a de Polignac number, because 2204836121 - 2¹⁴ = 2204819737 is a prime.

It is a super-2 number, since 2×2204836121² = 9722604640932653282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2204836111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102418060 + 1102418061.

It is an arithmetic number, because the mean of its divisors is an integer number (1102418061).

Almost surely, 2^2204836121 is an apocalyptic number.

It is an amenable number.

2204836121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2204836121 is an equidigital number, since it uses as much as digits as its factorization.

2204836121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 2204836121 is about 46955.6825208622. The cubic root of 2204836121 is about 1301.5437520624.

The spelling of 2204836121 in words is "two billion, two hundred four million, eight hundred thirty-six thousand, one hundred twenty-one".