222310442440 has 32 divisors (see below), whose sum is σ = 500284251000. Its totient is φ = 88908931584.

The previous prime is 222310442423. The next prime is 222310442447. The reversal of 222310442440 is 44244013222.

It can be written as a sum of positive squares in 4 ways, for example, as 180171385156 + 42139057284 = 424466^2 + 205278^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222310442399 and 222310442408.

It is not an unprimeable number, because it can be changed into a prime (222310442447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238725 + ... + 708244.

Almost surely, 2^222310442440 is an apocalyptic number.

222310442440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222310442440 is an abundant number, since it is smaller than the sum of its proper divisors (277973808560).

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

222310442440 is a wasteful number, since it uses less digits than its factorization.

222310442440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952849 (or 952845 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 222310442440 its reverse (44244013222), we get a palindrome (266554455662).

The spelling of 222310442440 in words is "two hundred twenty-two billion, three hundred ten million, four hundred forty-two thousand, four hundred forty".