1222458085 has 8 divisors (see below), whose sum is σ = 1467227160. Its totient is φ = 977781504.

The previous prime is 1222458079. The next prime is 1222458089. The reversal of 1222458085 is 5808542221.

It can be written as a sum of positive squares in 4 ways, for example, as 48916036 + 1173542049 = 6994^2 + 34257^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222458085 - 2³ = 1222458077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222458089) 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 in 7 ways as a sum of consecutive naturals, for example, 10369 + ... + 50521.

It is an arithmetic number, because the mean of its divisors is an integer number (183403395).

Almost surely, 2^1222458085 is an apocalyptic number.

It is an amenable number.

1222458085 is a deficient number, since it is larger than the sum of its proper divisors (244769075).

1222458085 is an equidigital number, since it uses as much as digits as its factorization.

1222458085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46247.

The product of its (nonzero) digits is 51200, while the sum is 37.

The square root of 1222458085 is about 34963.6680712994. The cubic root of 1222458085 is about 1069.2468817529.

The spelling of 1222458085 in words is "one billion, two hundred twenty-two million, four hundred fifty-eight thousand, eighty-five".