2202331210721 has 2 divisors, whose sum is σ = 2202331210722. Its totient is φ = 2202331210720.

The previous prime is 2202331210697. The next prime is 2202331210727. The reversal of 2202331210721 is 1270121332022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2023537545121 + 178793665600 = 1422511^2 + 422840^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202331210721 - 2¹⁸ = 2202330948577 is a prime.

It is not a weakly prime, because it can be changed into another prime (2202331210727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101165605360 + 1101165605361.

It is an arithmetic number, because the mean of its divisors is an integer number (1101165605361).

Almost surely, 2^{2202331210721} is an apocalyptic number.

It is an amenable number.

2202331210721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202331210721 is an equidigital number, since it uses as much as digits as its factorization.

2202331210721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 2202331210721 its reverse (1270121332022), we get a palindrome (3472452542743).

The spelling of 2202331210721 in words is "two trillion, two hundred two billion, three hundred thirty-one million, two hundred ten thousand, seven hundred twenty-one".