222116722 has 4 divisors (see below), whose sum is σ = 333175086. Its totient is φ = 111058360.

The previous prime is 222116717. The next prime is 222116723. The reversal of 222116722 is 227611222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 151068681 + 71048041 = 12291^2 + 8429^2 .

It is not an unprimeable number, because it can be changed into a prime (222116723) 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 as a sum of consecutive naturals, namely, 55529179 + ... + 55529182.

Almost surely, 2^222116722 is an apocalyptic number.

222116722 is a deficient number, since it is larger than the sum of its proper divisors (111058364).

222116722 is a wasteful number, since it uses less digits than its factorization.

222116722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111058363.

The product of its digits is 1344, while the sum is 25.

The square root of 222116722 is about 14903.5808448842. The cubic root of 222116722 is about 605.6109957914.

Adding to 222116722 its reverse (227611222), we get a palindrome (449727944).

The spelling of 222116722 in words is "two hundred twenty-two million, one hundred sixteen thousand, seven hundred twenty-two".