222997716840 has 128 divisors (see below), whose sum is σ = 695353196160. Its totient is φ = 57161677824.

The previous prime is 222997716839. The next prime is 222997716863. The reversal of 222997716840 is 48617799222.

It is a super-3 number, since 3×222997716840³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65962 + ... + 671078.

It is an arithmetic number, because the mean of its divisors is an integer number (5432446845).

Almost surely, 2^222997716840 is an apocalyptic number.

222997716840 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 222997716840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347676598080).

222997716840 is an abundant number, since it is smaller than the sum of its proper divisors (472355479320).

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

222997716840 is a wasteful number, since it uses less digits than its factorization.

222997716840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605251 (or 605247 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 222997716840 in words is "two hundred twenty-two billion, nine hundred ninety-seven million, seven hundred sixteen thousand, eight hundred forty".