222223151 has 2 divisors, whose sum is σ = 222223152. Its totient is φ = 222223150.

The previous prime is 222223109. The next prime is 222223181. The reversal of 222223151 is 151322222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222223151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222223181) 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 as a sum of consecutive naturals, namely, 111111575 + 111111576.

It is an arithmetic number, because the mean of its divisors is an integer number (111111576).

Almost surely, 2^222223151 is an apocalyptic number.

222223151 is a deficient number, since it is larger than the sum of its proper divisors (1).

222223151 is an equidigital number, since it uses as much as digits as its factorization.

222223151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 20.

The square root of 222223151 is about 14907.1510021198. The cubic root of 222223151 is about 605.7077081268.

Adding to 222223151 its reverse (151322222), we get a palindrome (373545373).

The spelling of 222223151 in words is "two hundred twenty-two million, two hundred twenty-three thousand, one hundred fifty-one".