221002231011017 has 2 divisors, whose sum is σ = 221002231011018. Its totient is φ = 221002231011016.

The previous prime is 221002231010921. The next prime is 221002231011047. The reversal of 221002231011017 is 710110132200122.

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., 155594962960441 + 65407268050576 = 12473771^2 + 8087476^2 .

It is a cyclic number.

It is not a de Polignac number, because 221002231011017 - 2¹⁶ = 221002230945481 is a prime.

It is a super-2 number, since 2×221002231011017² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221002231010983 and 221002231011001.

It is not a weakly prime, because it can be changed into another prime (221002231011047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501115505508 + 110501115505509.

It is an arithmetic number, because the mean of its divisors is an integer number (110501115505509).

Almost surely, 2^{221002231011017} is an apocalyptic number.

It is an amenable number.

221002231011017 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002231011017 is an equidigital number, since it uses as much as digits as its factorization.

221002231011017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 221002231011017 its reverse (710110132200122), we get a palindrome (931112363211139).

The spelling of 221002231011017 in words is "two hundred twenty-one trillion, two billion, two hundred thirty-one million, eleven thousand, seventeen".