22122726912 has 960 divisors, whose sum is σ = 83814635520. Its totient is φ = 5673369600.

The previous prime is 22122726889. The next prime is 22122726947. The reversal of 22122726912 is 21962722122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 713636337 + ... + 713636367.

It is an arithmetic number, because the mean of its divisors is an integer number (87306912).

Almost surely, 2^22122726912 is an apocalyptic number.

22122726912 is a gapful number since it is divisible by the number (22) 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 22122726912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41907317760).

22122726912 is an abundant number, since it is smaller than the sum of its proper divisors (61691908608).

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

22122726912 is a wasteful number, since it uses less digits than its factorization.

22122726912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 79 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The spelling of 22122726912 in words is "twenty-two billion, one hundred twenty-two million, seven hundred twenty-six thousand, nine hundred twelve".