222042422440 has 64 divisors (see below), whose sum is σ = 512459634960. Its totient is φ = 86535751680.

The previous prime is 222042422417. The next prime is 222042422477. The reversal of 222042422440 is 44224240222.

222042422440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 58621125924 + 163421296516 = 242118^2 + 404254^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222042422399 and 222042422408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1152054 + ... + 1330906.

Almost surely, 2^222042422440 is an apocalyptic number.

222042422440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222042422440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256229817480).

222042422440 is an abundant number, since it is smaller than the sum of its proper divisors (290417212520).

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

222042422440 is a wasteful number, since it uses less digits than its factorization.

222042422440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179662 (or 179658 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 222042422440 its reverse (44224240222), we get a palindrome (266266662662).

The spelling of 222042422440 in words is "two hundred twenty-two billion, forty-two million, four hundred twenty-two thousand, four hundred forty".