222817716 has 120 divisors (see below), whose sum is σ = 642771360. Its totient is φ = 66744000.

The previous prime is 222817703. The next prime is 222817717. The reversal of 222817716 is 617718222.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222817717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 359655 + ... + 360273.

It is an arithmetic number, because the mean of its divisors is an integer number (5356428).

Almost surely, 2^222817716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222817716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321385680).

222817716 is an abundant number, since it is smaller than the sum of its proper divisors (419953644).

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

222817716 is a wasteful number, since it uses less digits than its factorization.

222817716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 736 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 222817716 is about 14927.0799555707. The cubic root of 222817716 is about 606.2474237181.

The spelling of 222817716 in words is "two hundred twenty-two million, eight hundred seventeen thousand, seven hundred sixteen".