222044149 has 2 divisors, whose sum is σ = 222044150. Its totient is φ = 222044148.

The previous prime is 222044143. The next prime is 222044171. The reversal of 222044149 is 941440222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206496900 + 15547249 = 14370^2 + 3943^2 .

It is a cyclic number.

It is not a de Polignac number, because 222044149 - 2⁹ = 222043637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222044143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111022074 + 111022075.

It is an arithmetic number, because the mean of its divisors is an integer number (111022075).

Almost surely, 2^222044149 is an apocalyptic number.

It is an amenable number.

222044149 is a deficient number, since it is larger than the sum of its proper divisors (1).

222044149 is an equidigital number, since it uses as much as digits as its factorization.

222044149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 222044149 is about 14901.1458955343. The cubic root of 222044149 is about 605.5450307828.

The spelling of 222044149 in words is "two hundred twenty-two million, forty-four thousand, one hundred forty-nine".