222452661 has 8 divisors (see below), whose sum is σ = 297899680. Its totient is φ = 147653712.

The previous prime is 222452641. The next prime is 222452669. The reversal of 222452661 is 166254222.

It is a happy number.

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

It is not a de Polignac number, because 222452661 - 2⁹ = 222452149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222452669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161215 + ... + 162588.

It is an arithmetic number, because the mean of its divisors is an integer number (37237460).

Almost surely, 2^222452661 is an apocalyptic number.

It is an amenable number.

222452661 is a deficient number, since it is larger than the sum of its proper divisors (75447019).

222452661 is a wasteful number, since it uses less digits than its factorization.

222452661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324035.

The product of its digits is 11520, while the sum is 30.

The square root of 222452661 is about 14914.8469988800. The cubic root of 222452661 is about 605.9161594737.

The spelling of 222452661 in words is "two hundred twenty-two million, four hundred fifty-two thousand, six hundred sixty-one".