222330261 has 8 divisors (see below), whose sum is σ = 296883520. Its totient is φ = 147998592.

The previous prime is 222330223. The next prime is 222330263. The reversal of 222330261 is 162033222.

222330261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 222330261 - 2⁷ = 222330133 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 (222330263) 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, 53041 + ... + 57078.

It is an arithmetic number, because the mean of its divisors is an integer number (37110440).

Almost surely, 2^222330261 is an apocalyptic number.

It is an amenable number.

222330261 is a deficient number, since it is larger than the sum of its proper divisors (74553259).

222330261 is a wasteful number, since it uses less digits than its factorization.

222330261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110795.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 222330261 is about 14910.7431404340. The cubic root of 222330261 is about 605.8050081180.

Adding to 222330261 its reverse (162033222), we get a palindrome (384363483).

The spelling of 222330261 in words is "two hundred twenty-two million, three hundred thirty thousand, two hundred sixty-one".