22241221110 has 128 divisors (see below), whose sum is σ = 60030443520. Its totient is φ = 5859216000.

The previous prime is 22241221081. The next prime is 22241221151. The reversal of 22241221110 is 1112214222.

22241221110 is a `hidden beast` number, since 222 + 412 + 21 + 1 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22442715 + ... + 22443705.

It is an arithmetic number, because the mean of its divisors is an integer number (468987840).

Almost surely, 2^22241221110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22241221110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30015221760).

22241221110 is an abundant number, since it is smaller than the sum of its proper divisors (37789222410).

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

22241221110 is a wasteful number, since it uses less digits than its factorization.

22241221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931 (or 1925 counting only the distinct ones).

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

Adding to 22241221110 its reverse (1112214222), we get a palindrome (23353435332).

The spelling of 22241221110 in words is "twenty-two billion, two hundred forty-one million, two hundred twenty-one thousand, one hundred ten".