22120220110122 has 80 divisors (see below), whose sum is σ = 50019632381664. Its totient is φ = 7306046748000.

The previous prime is 22120220110031. The next prime is 22120220110127. The reversal of 22120220110122 is 22101102202122.

It is a happy number.

22120220110122 is a `hidden beast` number, since 2 + 212 + 0 + 220 + 110 + 122 = 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 = 22120220110095 and 22120220110104.

It is not an unprimeable number, because it can be changed into a prime (22120220110127) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13239297 + ... + 14816187.

Almost surely, 2^{22120220110122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22120220110122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25009816190832).

22120220110122 is an abundant number, since it is smaller than the sum of its proper divisors (27899412271542).

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

22120220110122 is a wasteful number, since it uses less digits than its factorization.

22120220110122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577697 (or 1577688 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22120220110122 its reverse (22101102202122), we get a palindrome (44221322312244).

The spelling of 22120220110122 in words is "twenty-two trillion, one hundred twenty billion, two hundred twenty million, one hundred ten thousand, one hundred twenty-two".