401256361326222 has 128 divisors (see below), whose sum is σ = 931746526571520. Its totient is φ = 127758599654400.

The previous prime is 401256361326203. The next prime is 401256361326257. The reversal of 401256361326222 is 222623163652104.

401256361326222 is a `hidden beast` number, since 4 + 0 + 1 + 2 + 5 + 6 + 3 + 6 + 13 + 2 + 622 + 2 = 666.

It is a super-2 number, since 2×401256361326222² (a number of 30 digits) 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 63 ways as a sum of consecutive naturals, for example, 2582391798 + ... + 2582547174.

It is an arithmetic number, because the mean of its divisors is an integer number (7279269738840).

Almost surely, 2^{401256361326222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401256361326222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465873263285760).

401256361326222 is an abundant number, since it is smaller than the sum of its proper divisors (530490165245298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401256361326222 is a wasteful number, since it uses less digits than its factorization.

401256361326222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158295 (or 158289 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 401256361326222 in words is "four hundred one trillion, two hundred fifty-six billion, three hundred sixty-one million, three hundred twenty-six thousand, two hundred twenty-two".