1204410121 has 2 divisors, whose sum is σ = 1204410122. Its totient is φ = 1204410120.

The previous prime is 1204410089. The next prime is 1204410143. The reversal of 1204410121 is 1210144021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 740438521 + 463971600 = 27211^2 + 21540^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204410121 - 2⁵ = 1204410089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1204410095 and 1204410104.

It is not a weakly prime, because it can be changed into another prime (1204410191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602205060 + 602205061.

It is an arithmetic number, because the mean of its divisors is an integer number (602205061).

Almost surely, 2^1204410121 is an apocalyptic number.

It is an amenable number.

1204410121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204410121 is an equidigital number, since it uses as much as digits as its factorization.

1204410121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1204410121 is about 34704.6123879809. The cubic root of 1204410121 is about 1063.9587701555.

Adding to 1204410121 its reverse (1210144021), we get a palindrome (2414554142).

The spelling of 1204410121 in words is "one billion, two hundred four million, four hundred ten thousand, one hundred twenty-one".