22011110044 has 72 divisors (see below), whose sum is σ = 50685118848. Its totient is φ = 8124360480.

The previous prime is 22011109927. The next prime is 22011110047. The reversal of 22011110044 is 44001111022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011110047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12207 + ... + 210169.

It is an arithmetic number, because the mean of its divisors is an integer number (703959984).

Almost surely, 2^22011110044 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 22011110044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25342559424).

22011110044 is an abundant number, since it is smaller than the sum of its proper divisors (28674008804).

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

22011110044 is a wasteful number, since it uses less digits than its factorization.

22011110044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198023 (or 198002 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22011110044 its reverse (44001111022), we get a palindrome (66012221066).

The spelling of 22011110044 in words is "twenty-two billion, eleven million, one hundred ten thousand, forty-four".