22229111645 has 54 divisors (see below), whose sum is σ = 30331161882. Its totient is φ = 15631222464.

The previous prime is 22229111633. The next prime is 22229111657. The reversal of 22229111645 is 54611192222.

It is an interprime number because it is at equal distance from previous prime (22229111633) and next prime (22229111657).

It can be written as a sum of positive squares in 3 ways, for example, as 105226564 + 22123885081 = 10258^2 + 148741^2 .

It is not a de Polignac number, because 22229111645 - 2²⁰ = 22228063069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 99682004 + ... + 99682226.

It is an arithmetic number, because the mean of its divisors is an integer number (561688183).

Almost surely, 2^22229111645 is an apocalyptic number.

It is an amenable number.

22229111645 is a deficient number, since it is larger than the sum of its proper divisors (8102050237).

22229111645 is an equidigital number, since it uses as much as digits as its factorization.

22229111645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 264 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The spelling of 22229111645 in words is "twenty-two billion, two hundred twenty-nine million, one hundred eleven thousand, six hundred forty-five".