22112210100220 has 96 divisors (see below), whose sum is σ = 48621521894400. Its totient is φ = 8431188226560.

The previous prime is 22112210100203. The next prime is 22112210100221. The reversal of 22112210100220 is 2200101221122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22112210100194 and 22112210100203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112210100221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 729447784 + ... + 729478096.

It is an arithmetic number, because the mean of its divisors is an integer number (506474186400).

Almost surely, 2^{22112210100220} is an apocalyptic number.

22112210100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22112210100220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24310760947200).

22112210100220 is an abundant number, since it is smaller than the sum of its proper divisors (26509311794180).

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

22112210100220 is a wasteful number, since it uses less digits than its factorization.

22112210100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35755 (or 35753 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22112210100220 its reverse (2200101221122), we get a palindrome (24312311321342).

The spelling of 22112210100220 in words is "twenty-two trillion, one hundred twelve billion, two hundred ten million, one hundred thousand, two hundred twenty".