22120111200220 has 96 divisors (see below), whose sum is σ = 52515704747520. Its totient is φ = 7752512866560.

The previous prime is 22120111200197. The next prime is 22120111200227. The reversal of 22120111200220 is 2200211102122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22120111200194 and 22120111200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120111200227) 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, 512809 + ... + 6671071.

It is an arithmetic number, because the mean of its divisors is an integer number (547038591120).

Almost surely, 2^{22120111200220} is an apocalyptic number.

22120111200220 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 22120111200220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26257852373760).

22120111200220 is an abundant number, since it is smaller than the sum of its proper divisors (30395593547300).

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

22120111200220 is a wasteful number, since it uses less digits than its factorization.

22120111200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6158875 (or 6158873 counting only the distinct ones).

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

Adding to 22120111200220 its reverse (2200211102122), we get a palindrome (24320322302342).

The spelling of 22120111200220 in words is "twenty-two trillion, one hundred twenty billion, one hundred eleven million, two hundred thousand, two hundred twenty".