22200222111120 has 160 divisors (see below), whose sum is σ = 76485443011200. Its totient is φ = 5918664807936.

The previous prime is 22200222111113. The next prime is 22200222111121. The reversal of 22200222111120 is 2111122200222.

It is a happy number.

It is a super-2 number, since 2×22200222111120² (a number of 27 digits) contains 22 as substring.

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 = 22200222111093 and 22200222111102.

It is not an unprimeable number, because it can be changed into a prime (22200222111121) 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, 7978171 + ... + 10394789.

It is an arithmetic number, because the mean of its divisors is an integer number (478034018820).

Almost surely, 2^{22200222111120} is an apocalyptic number.

22200222111120 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 22200222111120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38242721505600).

22200222111120 is an abundant number, since it is smaller than the sum of its proper divisors (54285220900080).

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

22200222111120 is a wasteful number, since it uses less digits than its factorization.

22200222111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420894 (or 2420882 counting only the distinct ones).

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

Adding to 22200222111120 its reverse (2111122200222), we get a palindrome (24311344311342).

The spelling of 22200222111120 in words is "twenty-two trillion, two hundred billion, two hundred twenty-two million, one hundred eleven thousand, one hundred twenty".