22111403056 has 80 divisors (see below), whose sum is σ = 46711563840. Its totient is φ = 10097049600.

The previous prime is 22111403023. The next prime is 22111403117. The reversal of 22111403056 is 65030411122.

It is a happy number.

It is a super-2 number, since 2×22111403056² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22111403056.

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, 4032925 + ... + 4038403.

It is an arithmetic number, because the mean of its divisors is an integer number (583894548).

Almost surely, 2^22111403056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22111403056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23355781920).

22111403056 is an abundant number, since it is smaller than the sum of its proper divisors (24600160784).

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

22111403056 is a wasteful number, since it uses less digits than its factorization.

22111403056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5942 (or 5936 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 22111403056 its reverse (65030411122), we get a palindrome (87141814178).

The spelling of 22111403056 in words is "twenty-two billion, one hundred eleven million, four hundred three thousand, fifty-six".