7221053236601 has 2 divisors, whose sum is σ = 7221053236602. Its totient is φ = 7221053236600.

The previous prime is 7221053236567. The next prime is 7221053236613. The reversal of 7221053236601 is 1066323501227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5230259224576 + 1990794012025 = 2286976^2 + 1410955^2 .

It is a cyclic number.

It is not a de Polignac number, because 7221053236601 - 2²² = 7221049042297 is a prime.

It is not a weakly prime, because it can be changed into another prime (7221053233601) 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, 3610526618300 + 3610526618301.

It is an arithmetic number, because the mean of its divisors is an integer number (3610526618301).

Almost surely, 2^{7221053236601} is an apocalyptic number.

It is an amenable number.

7221053236601 is a deficient number, since it is larger than the sum of its proper divisors (1).

7221053236601 is an equidigital number, since it uses as much as digits as its factorization.

7221053236601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

Adding to 7221053236601 its reverse (1066323501227), we get a palindrome (8287376737828).

The spelling of 7221053236601 in words is "seven trillion, two hundred twenty-one billion, fifty-three million, two hundred thirty-six thousand, six hundred one".