401122279 has 2 divisors, whose sum is σ = 401122280. Its totient is φ = 401122278.

The previous prime is 401122247. The next prime is 401122303. The reversal of 401122279 is 972221104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401122279 - 2⁵ = 401122247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401122879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200561139 + 200561140.

It is an arithmetic number, because the mean of its divisors is an integer number (200561140).

Almost surely, 2^401122279 is an apocalyptic number.

401122279 is a deficient number, since it is larger than the sum of its proper divisors (1).

401122279 is an equidigital number, since it uses as much as digits as its factorization.

401122279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 401122279 is about 20028.0373227134. The cubic root of 401122279 is about 737.4947414736.

The spelling of 401122279 in words is "four hundred one million, one hundred twenty-two thousand, two hundred seventy-nine".