22442220250 has 32 divisors (see below), whose sum is σ = 42700583952. Its totient is φ = 8829720000.

The previous prime is 22442220233. The next prime is 22442220277. The reversal of 22442220250 is 5202224422.

It can be written as a sum of positive squares in 8 ways, for example, as 77316849 + 22364903401 = 8793^2 + 149549^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 720561 + ... + 751060.

Almost surely, 2^22442220250 is an apocalyptic number.

22442220250 is a deficient number, since it is larger than the sum of its proper divisors (20258363702).

22442220250 is a wasteful number, since it uses less digits than its factorization.

22442220250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471699 (or 1471689 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

Adding to 22442220250 its reverse (5202224422), we get a palindrome (27644444672).

The spelling of 22442220250 in words is "twenty-two billion, four hundred forty-two million, two hundred twenty thousand, two hundred fifty".