401282811217 has 2 divisors, whose sum is σ = 401282811218. Its totient is φ = 401282811216.

The previous prime is 401282811179. The next prime is 401282811247. The reversal of 401282811217 is 712118282104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 400991631121 + 291180096 = 633239^2 + 17064^2 .

It is a cyclic number.

It is not a de Polignac number, because 401282811217 - 2³⁵ = 366923072849 is a prime.

It is a super-2 number, since 2×401282811217² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401282811247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200641405608 + 200641405609.

It is an arithmetic number, because the mean of its divisors is an integer number (200641405609).

Almost surely, 2^401282811217 is an apocalyptic number.

It is an amenable number.

401282811217 is a deficient number, since it is larger than the sum of its proper divisors (1).

401282811217 is an equidigital number, since it uses as much as digits as its factorization.

401282811217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14336, while the sum is 37.

The spelling of 401282811217 in words is "four hundred one billion, two hundred eighty-two million, eight hundred eleven thousand, two hundred seventeen".