401312004223215 has 256 divisors, whose sum is σ = 694418528010240. Its totient is φ = 197424669911040.

The previous prime is 401312004223211. The next prime is 401312004223253. The reversal of 401312004223215 is 512322400213104.

It is a happy number.

It is not a de Polignac number, because 401312004223215 - 2² = 401312004223211 is a prime.

It is a super-2 number, since 2×401312004223215² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401312004223211) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 302420499882 + ... + 302420501208.

It is an arithmetic number, because the mean of its divisors is an integer number (2712572375040).

Almost surely, 2^{401312004223215} is an apocalyptic number.

401312004223215 is a deficient number, since it is larger than the sum of its proper divisors (293106523787025).

401312004223215 is a wasteful number, since it uses less digits than its factorization.

401312004223215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2342.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 401312004223215 its reverse (512322400213104), we get a palindrome (913634404436319).

The spelling of 401312004223215 in words is "four hundred one trillion, three hundred twelve billion, four million, two hundred twenty-three thousand, two hundred fifteen".