401113221 has 8 divisors (see below), whose sum is σ = 535079424. Its totient is φ = 267277920.

The previous prime is 401113217. The next prime is 401113241. The reversal of 401113221 is 122311104.

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

It is not a de Polignac number, because 401113221 - 2² = 401113217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401113221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401113201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25336 + ... + 38001.

It is an arithmetic number, because the mean of its divisors is an integer number (66884928).

Almost surely, 2^401113221 is an apocalyptic number.

It is an amenable number.

401113221 is a deficient number, since it is larger than the sum of its proper divisors (133966203).

401113221 is a wasteful number, since it uses less digits than its factorization.

401113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65451.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 401113221 is about 20027.8111884449. The cubic root of 401113221 is about 737.4891901509.

Adding to 401113221 its reverse (122311104), we get a palindrome (523424325).

The spelling of 401113221 in words is "four hundred one million, one hundred thirteen thousand, two hundred twenty-one".