123221882249 has 2 divisors, whose sum is σ = 123221882250. Its totient is φ = 123221882248.

The previous prime is 123221882227. The next prime is 123221882297. The reversal of 123221882249 is 942288122321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123204510025 + 17372224 = 351005^2 + 4168^2 .

It is a cyclic number.

It is not a de Polignac number, because 123221882249 - 2¹⁶ = 123221816713 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (123221888249) 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, 61610941124 + 61610941125.

It is an arithmetic number, because the mean of its divisors is an integer number (61610941125).

Almost surely, 2^123221882249 is an apocalyptic number.

It is an amenable number.

123221882249 is a deficient number, since it is larger than the sum of its proper divisors (1).

123221882249 is an equidigital number, since it uses as much as digits as its factorization.

123221882249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 44.

The spelling of 123221882249 in words is "one hundred twenty-three billion, two hundred twenty-one million, eight hundred eighty-two thousand, two hundred forty-nine".