401255222 has 8 divisors (see below), whose sum is σ = 610360272. Its totient is φ = 197801800.

The previous prime is 401255191. The next prime is 401255237. The reversal of 401255222 is 222552104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×401255222² = 322011506364538568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1412729 + ... + 1413012.

It is an arithmetic number, because the mean of its divisors is an integer number (76295034).

Almost surely, 2^401255222 is an apocalyptic number.

401255222 is a deficient number, since it is larger than the sum of its proper divisors (209105050).

401255222 is a wasteful number, since it uses less digits than its factorization.

401255222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825814.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 401255222 is about 20031.3559700785. The cubic root of 401255222 is about 737.5762078484.

The spelling of 401255222 in words is "four hundred one million, two hundred fifty-five thousand, two hundred twenty-two".