22220111120 has 80 divisors (see below), whose sum is σ = 54747031680. Its totient is φ = 8358131712.

The previous prime is 22220111119. The next prime is 22220111131. The reversal of 22220111120 is 2111102222.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 22220111095 and 22220111104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1765811 + ... + 1778349.

It is an arithmetic number, because the mean of its divisors is an integer number (684337896).

Almost surely, 2^22220111120 is an apocalyptic number.

22220111120 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 22220111120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27373515840).

22220111120 is an abundant number, since it is smaller than the sum of its proper divisors (32526920560).

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

22220111120 is a wasteful number, since it uses less digits than its factorization.

22220111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13872 (or 13866 counting only the distinct ones).

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

Adding to 22220111120 its reverse (2111102222), we get a palindrome (24331213342).

The spelling of 22220111120 in words is "twenty-two billion, two hundred twenty million, one hundred eleven thousand, one hundred twenty".