222219722 has 4 divisors (see below), whose sum is σ = 333329586. Its totient is φ = 111109860.

The previous prime is 222219703. The next prime is 222219727. The reversal of 222219722 is 227912222.

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., 148620481 + 73599241 = 12191^2 + 8579^2 .

It is not an unprimeable number, because it can be changed into a prime (222219727) 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, 55554929 + ... + 55554932.

Almost surely, 2^222219722 is an apocalyptic number.

222219722 is a deficient number, since it is larger than the sum of its proper divisors (111109864).

222219722 is a wasteful number, since it uses less digits than its factorization.

222219722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111109863.

The product of its digits is 4032, while the sum is 29.

The square root of 222219722 is about 14907.0359897600. The cubic root of 222219722 is about 605.7045926662.

It can be divided in two parts, 22 and 2219722, that multiplied together give a palindrome (48833884).

The spelling of 222219722 in words is "two hundred twenty-two million, two hundred nineteen thousand, seven hundred twenty-two".