22220849672 has 36 divisors (see below), whose sum is σ = 48472832205. Its totient is φ = 9521956416.

The previous prime is 22220849669. The next prime is 22220849731. The reversal of 22220849672 is 27694802222.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 21563747716 + 657101956 = 146846^2 + 25634^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105406.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2947604 + ... + 2955132.

Almost surely, 2^22220849672 is an apocalyptic number.

It is an amenable number.

22220849672 is an abundant number, since it is smaller than the sum of its proper divisors (26251982533).

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

22220849672 is an frugal number, since it uses more digits than its factorization.

22220849672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15078 (or 7538 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 22220849672 in words is "twenty-two billion, two hundred twenty million, eight hundred forty-nine thousand, six hundred seventy-two".