401403314233221 has 16 divisors (see below), whose sum is σ = 555702768687360. Its totient is φ = 257421135464640.

The previous prime is 401403314233217. The next prime is 401403314233249. The reversal of 401403314233221 is 122332413304104.

It is not a de Polignac number, because 401403314233221 - 2² = 401403314233217 is a prime.

It is a super-2 number, since 2×401403314233221² (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 (401403314233321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8512580110 + ... + 8512627263.

It is an arithmetic number, because the mean of its divisors is an integer number (34731423042960).

Almost surely, 2^{401403314233221} is an apocalyptic number.

It is an amenable number.

401403314233221 is a deficient number, since it is larger than the sum of its proper divisors (154299454454139).

401403314233221 is a wasteful number, since it uses less digits than its factorization.

401403314233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17025207676.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 401403314233221 its reverse (122332413304104), we get a palindrome (523735727537325).

The spelling of 401403314233221 in words is "four hundred one trillion, four hundred three billion, three hundred fourteen million, two hundred thirty-three thousand, two hundred twenty-one".