222256911 has 8 divisors (see below), whose sum is σ = 296705920. Its totient is φ = 147989592.

The previous prime is 222256897. The next prime is 222256913. The reversal of 222256911 is 119652222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222256911 - 2⁶ = 222256847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222256913) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 42541 + ... + 47478.

It is an arithmetic number, because the mean of its divisors is an integer number (37088240).

Almost surely, 2^222256911 is an apocalyptic number.

222256911 is a deficient number, since it is larger than the sum of its proper divisors (74449009).

222256911 is an equidigital number, since it uses as much as digits as its factorization.

222256911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90845.

The product of its digits is 4320, while the sum is 30.

The square root of 222256911 is about 14908.2833015743. The cubic root of 222256911 is about 605.7383794838.

The spelling of 222256911 in words is "two hundred twenty-two million, two hundred fifty-six thousand, nine hundred eleven".