22111320220 has 24 divisors (see below), whose sum is σ = 50655025008. Its totient is φ = 8040480000.

The previous prime is 22111320103. The next prime is 22111320223. The reversal of 22111320220 is 2202311122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22111320194 and 22111320203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111320223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50252781 + ... + 50253220.

It is an arithmetic number, because the mean of its divisors is an integer number (2110626042).

Almost surely, 2^22111320220 is an apocalyptic number.

22111320220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111320220 is an abundant number, since it is smaller than the sum of its proper divisors (28543704788).

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

22111320220 is a wasteful number, since it uses less digits than its factorization.

22111320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100506021 (or 100506019 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22111320220 its reverse (2202311122), we get a palindrome (24313631342).

The spelling of 22111320220 in words is "twenty-two billion, one hundred eleven million, three hundred twenty thousand, two hundred twenty".