22110521472 has 216 divisors, whose sum is σ = 69101112015. Its totient is φ = 6783049728.

The previous prime is 22110521449. The next prime is 22110521491. The reversal of 22110521472 is 27412501122.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

22110521472 is a `hidden beast` number, since 22 + 110 + 521 + 4 + 7 + 2 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 529736256 + 21580785216 = 23016^2 + 146904^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105144.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 65609688 + ... + 65610024.

Almost surely, 2^22110521472 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 22110521472

22110521472 is an abundant number, since it is smaller than the sum of its proper divisors (46990590543).

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

22110521472 is an equidigital number, since it uses as much as digits as its factorization.

22110521472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The spelling of 22110521472 in words is "twenty-two billion, one hundred ten million, five hundred twenty-one thousand, four hundred seventy-two".