202255671217 has 2 divisors, whose sum is σ = 202255671218. Its totient is φ = 202255671216.

The previous prime is 202255671199. The next prime is 202255671227. The reversal of 202255671217 is 712176552202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190710383616 + 11545287601 = 436704^2 + 107449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202255671217 is a prime.

It is a super-2 number, since 2×202255671217² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202255671217.

It is not a weakly prime, because it can be changed into another prime (202255671227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101127835608 + 101127835609.

It is an arithmetic number, because the mean of its divisors is an integer number (101127835609).

Almost surely, 2^202255671217 is an apocalyptic number.

It is an amenable number.

202255671217 is a deficient number, since it is larger than the sum of its proper divisors (1).

202255671217 is an equidigital number, since it uses as much as digits as its factorization.

202255671217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 202255671217 in words is "two hundred two billion, two hundred fifty-five million, six hundred seventy-one thousand, two hundred seventeen".