222149671 has 2 divisors, whose sum is σ = 222149672. Its totient is φ = 222149670.

The previous prime is 222149651. The next prime is 222149677. The reversal of 222149671 is 176941222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222149671 - 2¹¹ = 222147623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222149677) 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, 111074835 + 111074836.

It is an arithmetic number, because the mean of its divisors is an integer number (111074836).

Almost surely, 2^222149671 is an apocalyptic number.

222149671 is a deficient number, since it is larger than the sum of its proper divisors (1).

222149671 is an equidigital number, since it uses as much as digits as its factorization.

222149671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 222149671 is about 14904.6862093772. The cubic root of 222149671 is about 605.6409399426.

The spelling of 222149671 in words is "two hundred twenty-two million, one hundred forty-nine thousand, six hundred seventy-one".