2401200121 has 2 divisors, whose sum is σ = 2401200122. Its totient is φ = 2401200120.

The previous prime is 2401200091. The next prime is 2401200133. The reversal of 2401200121 is 1210021042.

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., 1208257600 + 1192942521 = 34760^2 + 34539^2 .

It is a cyclic number.

It is not a de Polignac number, because 2401200121 - 2¹¹ = 2401198073 is a prime.

It is not a weakly prime, because it can be changed into another prime (2401204121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200600060 + 1200600061.

It is an arithmetic number, because the mean of its divisors is an integer number (1200600061).

Almost surely, 2^2401200121 is an apocalyptic number.

It is an amenable number.

2401200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2401200121 is an equidigital number, since it uses as much as digits as its factorization.

2401200121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2401200121 is about 49002.0420084714. The cubic root of 2401200121 is about 1339.0890297935.

Adding to 2401200121 its reverse (1210021042), we get a palindrome (3611221163).

The spelling of 2401200121 in words is "two billion, four hundred one million, two hundred thousand, one hundred twenty-one".