221110122011022 has 64 divisors (see below), whose sum is σ = 498350441459520. Its totient is φ = 72660445632000.

The previous prime is 221110122011021. The next prime is 221110122011039. The reversal of 221110122011022 is 220110221011122.

221110122011022 is a `hidden beast` number, since 2 + 211 + 101 + 220 + 110 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 221110122010986 and 221110122011004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221110122011021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85726879 + ... + 88268442.

It is an arithmetic number, because the mean of its divisors is an integer number (7786725647805).

Almost surely, 2^{221110122011022} is an apocalyptic number.

221110122011022 is an abundant number, since it is smaller than the sum of its proper divisors (277240319448498).

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

221110122011022 is a wasteful number, since it uses less digits than its factorization.

221110122011022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173995666 (or 173995660 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 221110122011022 its reverse (220110221011122), we get a palindrome (441220343022144).

The spelling of 221110122011022 in words is "two hundred twenty-one trillion, one hundred ten billion, one hundred twenty-two million, eleven thousand, twenty-two".