222140231 has 2 divisors, whose sum is σ = 222140232. Its totient is φ = 222140230.

The previous prime is 222140213. The next prime is 222140257. The reversal of 222140231 is 132041222.

Together with previous prime (222140213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222140231 - 2¹⁰ = 222139207 is a prime.

It is a super-2 number, since 2×222140231² = 98692564457466722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222140201) 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 as a sum of consecutive naturals, namely, 111070115 + 111070116.

It is an arithmetic number, because the mean of its divisors is an integer number (111070116).

Almost surely, 2^222140231 is an apocalyptic number.

222140231 is a deficient number, since it is larger than the sum of its proper divisors (1).

222140231 is an equidigital number, since it uses as much as digits as its factorization.

222140231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 222140231 is about 14904.3695270884. The cubic root of 222140231 is about 605.6323611446.

Adding to 222140231 its reverse (132041222), we get a palindrome (354181453).

Subtracting from 222140231 its reverse (132041222), we obtain a palindrome (90099009).

The spelling of 222140231 in words is "two hundred twenty-two million, one hundred forty thousand, two hundred thirty-one".