22220747408 has 20 divisors (see below), whose sum is σ = 43056901548. Its totient is φ = 11109288960.

The previous prime is 22220747407. The next prime is 22220747431. The reversal of 22220747408 is 80474702222.

It can be written as a sum of positive squares in 2 ways, for example, as 11297989264 + 10922758144 = 106292^2 + 104512^2 .

It is not an unprimeable number, because it can be changed into a prime (22220747407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116360 + ... + 240792.

Almost surely, 2^22220747408 is an apocalyptic number.

It is an amenable number.

22220747408 is a deficient number, since it is larger than the sum of its proper divisors (20836154140).

22220747408 is a wasteful number, since it uses less digits than its factorization.

22220747408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135602 (or 135596 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 38.

The spelling of 22220747408 in words is "twenty-two billion, two hundred twenty million, seven hundred forty-seven thousand, four hundred eight".