401500222 has 8 divisors (see below), whose sum is σ = 605615400. Its totient is φ = 199628424.

The previous prime is 401500207. The next prime is 401500223. The reversal of 401500222 is 222005104.

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

It is a super-2 number, since 2×401500222² = 322404856532098568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401500196 and 401500205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401500223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560397 + ... + 561112.

It is an arithmetic number, because the mean of its divisors is an integer number (75701925).

Almost surely, 2^401500222 is an apocalyptic number.

401500222 is a deficient number, since it is larger than the sum of its proper divisors (204115178).

401500222 is a wasteful number, since it uses less digits than its factorization.

401500222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121690.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 401500222 is about 20037.4704491360. The cubic root of 401500222 is about 737.7262947048.

Adding to 401500222 its reverse (222005104), we get a palindrome (623505326).

The spelling of 401500222 in words is "four hundred one million, five hundred thousand, two hundred twenty-two".