222466642 has 4 divisors (see below), whose sum is σ = 333699966. Its totient is φ = 111233320.

The previous prime is 222466637. The next prime is 222466667. The reversal of 222466642 is 246664222.

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., 195748081 + 26718561 = 13991^2 + 5169^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222466598 and 222466607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55616659 + ... + 55616662.

Almost surely, 2^222466642 is an apocalyptic number.

222466642 is a deficient number, since it is larger than the sum of its proper divisors (111233324).

222466642 is a wasteful number, since it uses less digits than its factorization.

222466642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111233323.

The product of its digits is 55296, while the sum is 34.

The square root of 222466642 is about 14915.3156855629. The cubic root of 222466642 is about 605.9288530154.

The spelling of 222466642 in words is "two hundred twenty-two million, four hundred sixty-six thousand, six hundred forty-two".