222231101 has 4 divisors (see below), whose sum is σ = 222469212. Its totient is φ = 221992992.

The previous prime is 222231071. The next prime is 222231109. The reversal of 222231101 is 101132222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 135722500 + 86508601 = 11650^2 + 9301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222231101 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 (222231109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117650 + ... + 119523.

It is an arithmetic number, because the mean of its divisors is an integer number (55617303).

Almost surely, 2^222231101 is an apocalyptic number.

It is an amenable number.

222231101 is a deficient number, since it is larger than the sum of its proper divisors (238111).

222231101 is an equidigital number, since it uses as much as digits as its factorization.

222231101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238110.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 222231101 is about 14907.4176502840. The cubic root of 222231101 is about 605.7149310749.

Adding to 222231101 its reverse (101132222), we get a palindrome (323363323).

The spelling of 222231101 in words is "two hundred twenty-two million, two hundred thirty-one thousand, one hundred one".