22011101200220 has 192 divisors, whose sum is σ = 51261040373760. Its totient is φ = 7872248217600.

The previous prime is 22011101200219. The next prime is 22011101200223. The reversal of 22011101200220 is 2200210111022.

It is a junction number, because it is equal to n+sod(n) for n = 22011101200195 and 22011101200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011101200223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5425460432 + ... + 5425464488.

It is an arithmetic number, because the mean of its divisors is an integer number (266984585280).

Almost surely, 2^{22011101200220} is an apocalyptic number.

22011101200220 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 22011101200220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25630520186880).

22011101200220 is an abundant number, since it is smaller than the sum of its proper divisors (29249939173540).

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

22011101200220 is a wasteful number, since it uses less digits than its factorization.

22011101200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284 (or 5282 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22011101200220 its reverse (2200210111022), we get a palindrome (24211311311242).

The spelling of 22011101200220 in words is "twenty-two trillion, eleven billion, one hundred one million, two hundred thousand, two hundred twenty".