22273110018 has 24 divisors (see below), whose sum is σ = 48261172908. Its totient is φ = 7423944192.

The previous prime is 22273110017. The next prime is 22273110019. The reversal of 22273110018 is 81001137222.

It is an interprime number because it is at equal distance from previous prime (22273110017) and next prime (22273110019).

It can be written as a sum of positive squares in 2 ways, for example, as 20726497089 + 1546612929 = 143967^2 + 39327^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22273109973 and 22273110000.

It is not an unprimeable number, because it can be changed into a prime (22273110017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 534630 + ... + 574782.

Almost surely, 2^22273110018 is an apocalyptic number.

22273110018 is an abundant number, since it is smaller than the sum of its proper divisors (25988062890).

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

22273110018 is a wasteful number, since it uses less digits than its factorization.

22273110018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70978 (or 70975 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The spelling of 22273110018 in words is "twenty-two billion, two hundred seventy-three million, one hundred ten thousand, eighteen".