222442131440 has 80 divisors (see below), whose sum is σ = 536175745056. Its totient is φ = 85760716800.

The previous prime is 222442131413. The next prime is 222442131473. The reversal of 222442131440 is 44131244222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 136301 + ... + 680780.

Almost surely, 2^222442131440 is an apocalyptic number.

222442131440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222442131440 is an abundant number, since it is smaller than the sum of its proper divisors (313733613616).

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

222442131440 is a wasteful number, since it uses less digits than its factorization.

222442131440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817218 (or 817212 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 222442131440 its reverse (44131244222), we get a palindrome (266573375662).

The spelling of 222442131440 in words is "two hundred twenty-two billion, four hundred forty-two million, one hundred thirty-one thousand, four hundred forty".