22211996450 has 54 divisors (see below), whose sum is σ = 48075474033. Its totient is φ = 7613012400.

The previous prime is 22211996449. The next prime is 22211996483. The reversal of 22211996450 is 5469911222.

It can be written as a sum of positive squares in 2 ways, for example, as 21767756521 + 444239929 = 147539^2 + 21077^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105385.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22211996398 and 22211996407.

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, 7375445 + ... + 7378455.

Almost surely, 2^22211996450 is an apocalyptic number.

22211996450 is an abundant number, since it is smaller than the sum of its proper divisors (25863477583).

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

22211996450 is an frugal number, since it uses more digits than its factorization.

22211996450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6048 (or 3025 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 22211996450 in words is "twenty-two billion, two hundred eleven million, nine hundred ninety-six thousand, four hundred fifty".