110402400042221 has 16 divisors (see below), whose sum is σ = 133630605256320. Its totient is φ = 89041171914240.

The previous prime is 110402400042161. The next prime is 110402400042247. The reversal of 110402400042221 is 122240004204011.

It is a de Polignac number, because none of the positive numbers 2^k-110402400042221 is a prime.

It is a super-2 number, since 2×110402400042221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110402400042821) 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, 119062931 + ... + 119986608.

It is an arithmetic number, because the mean of its divisors is an integer number (8351912828520).

Almost surely, 2^{110402400042221} is an apocalyptic number.

It is an amenable number.

110402400042221 is a deficient number, since it is larger than the sum of its proper divisors (23228205214099).

110402400042221 is a wasteful number, since it uses less digits than its factorization.

110402400042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239053444.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 110402400042221 its reverse (122240004204011), we get a palindrome (232642404246232).

The spelling of 110402400042221 in words is "one hundred ten trillion, four hundred two billion, four hundred million, forty-two thousand, two hundred twenty-one".