222442313440 has 24 divisors (see below), whose sum is σ = 525519965880. Its totient is φ = 88976925312.

The previous prime is 222442313411. The next prime is 222442313461. The reversal of 222442313440 is 44313244222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695132070 + ... + 695132389.

It is an arithmetic number, because the mean of its divisors is an integer number (21896665245).

Almost surely, 2^222442313440 is an apocalyptic number.

222442313440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222442313440 is an abundant number, since it is smaller than the sum of its proper divisors (303077652440).

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

222442313440 is a wasteful number, since it uses less digits than its factorization.

222442313440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390264474 (or 1390264466 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 222442313440 its reverse (44313244222), we get a palindrome (266755557662).

The spelling of 222442313440 in words is "two hundred twenty-two billion, four hundred forty-two million, three hundred thirteen thousand, four hundred forty".