401122240522111 has 4 divisors (see below), whose sum is σ = 401304320524552. Its totient is φ = 400940160519672.

The previous prime is 401122240522109. The next prime is 401122240522163. The reversal of 401122240522111 is 111225042221104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401122240522111 - 2¹ = 401122240522109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401122240522111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401122240528111) 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, 91039997916 + ... + 91040002321.

It is an arithmetic number, because the mean of its divisors is an integer number (100326080131138).

Almost surely, 2^{401122240522111} is an apocalyptic number.

401122240522111 is a deficient number, since it is larger than the sum of its proper divisors (182080002441).

401122240522111 is a wasteful number, since it uses less digits than its factorization.

401122240522111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182080002440.

The product of its (nonzero) digits is 2560, while the sum is 28.

Adding to 401122240522111 its reverse (111225042221104), we get a palindrome (512347282743215).

The spelling of 401122240522111 in words is "four hundred one trillion, one hundred twenty-two billion, two hundred forty million, five hundred twenty-two thousand, one hundred eleven".