1222094289 has 16 divisors (see below), whose sum is σ = 1755980352. Its totient is φ = 751553088.

The previous prime is 1222094287. The next prime is 1222094297. The reversal of 1222094289 is 9824902221.

It is not a de Polignac number, because 1222094289 - 2¹ = 1222094287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1222094287) 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 15 ways as a sum of consecutive naturals, for example, 53194 + ... + 72620.

It is an arithmetic number, because the mean of its divisors is an integer number (109748772).

Almost surely, 2^1222094289 is an apocalyptic number.

It is an amenable number.

1222094289 is a deficient number, since it is larger than the sum of its proper divisors (533886063).

1222094289 is a wasteful number, since it uses less digits than its factorization.

1222094289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21056.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 1222094289 is about 34958.4651980032. The cubic root of 1222094289 is about 1069.1408041331.

The spelling of 1222094289 in words is "one billion, two hundred twenty-two million, ninety-four thousand, two hundred eighty-nine".