222242431440 has 80 divisors (see below), whose sum is σ = 689007293568. Its totient is φ = 59259852288.

The previous prime is 222242431423. The next prime is 222242431447. The reversal of 222242431440 is 44134242222.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 222242431398 and 222242431407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222242431447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3716014 + ... + 3775346.

Almost surely, 2^222242431440 is an apocalyptic number.

222242431440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222242431440 is an abundant number, since it is smaller than the sum of its proper divisors (466764862128).

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

222242431440 is a wasteful number, since it uses less digits than its factorization.

222242431440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74956 (or 74950 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 222242431440 its reverse (44134242222), we get a palindrome (266376673662).

The spelling of 222242431440 in words is "two hundred twenty-two billion, two hundred forty-two million, four hundred thirty-one thousand, four hundred forty".