22220238042 has 24 divisors (see below), whose sum is σ = 50975840916. Its totient is φ = 6971054976.

The previous prime is 22220237993. The next prime is 22220238067. The reversal of 22220238042 is 24083202222.

22220238042 is a `hidden beast` number, since 22 + 220 + 2 + 380 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21726465201 + 493772841 = 147399^2 + 22221^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22220237997 and 22220238015.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36307273 + ... + 36307884.

Almost surely, 2^22220238042 is an apocalyptic number.

22220238042 is an abundant number, since it is smaller than the sum of its proper divisors (28755602874).

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

22220238042 is a wasteful number, since it uses less digits than its factorization.

22220238042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72615182 (or 72615179 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The spelling of 22220238042 in words is "twenty-two billion, two hundred twenty million, two hundred thirty-eight thousand, forty-two".