222801261 has 8 divisors (see below), whose sum is σ = 297214464. Its totient is φ = 148461120.

The previous prime is 222801191. The next prime is 222801289. The reversal of 222801261 is 162108222.

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

It is not a de Polignac number, because 222801261 - 2⁹ = 222800749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222881261) 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 in 7 ways as a sum of consecutive naturals, for example, 10701 + ... + 23666.

It is an arithmetic number, because the mean of its divisors is an integer number (37151808).

Almost surely, 2^222801261 is an apocalyptic number.

It is an amenable number.

222801261 is a deficient number, since it is larger than the sum of its proper divisors (74413203).

222801261 is a wasteful number, since it uses less digits than its factorization.

222801261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36531.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 222801261 is about 14926.5287659255. The cubic root of 222801261 is about 606.2324996401.

Adding to 222801261 its reverse (162108222), we get a palindrome (384909483).

The spelling of 222801261 in words is "two hundred twenty-two million, eight hundred one thousand, two hundred sixty-one".