401242122522 has 12 divisors (see below), whose sum is σ = 869357932170. Its totient is φ = 133747374168.

The previous prime is 401242122521. The next prime is 401242122623. The reversal of 401242122522 is 225221242104.

401242122522 is a `hidden beast` number, since 4 + 0 + 12 + 4 + 2 + 122 + 522 = 666.

It can be written as a sum of positive squares in only one way, i.e., 267827985441 + 133414137081 = 517521^2 + 365259^2 .

It is not an unprimeable number, because it can be changed into a prime (401242122521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11145614497 + ... + 11145614532.

Almost surely, 2^401242122522 is an apocalyptic number.

401242122522 is an abundant number, since it is smaller than the sum of its proper divisors (468115809648).

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

401242122522 is a wasteful number, since it uses less digits than its factorization.

401242122522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22291229037 (or 22291229034 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 401242122522 its reverse (225221242104), we get a palindrome (626463364626).

The spelling of 401242122522 in words is "four hundred one billion, two hundred forty-two million, one hundred twenty-two thousand, five hundred twenty-two".