122289986 has 24 divisors (see below), whose sum is σ = 229800060. Its totient is φ = 48377952.

The previous prime is 122289967. The next prime is 122289991. The reversal of 122289986 is 689982221.

It can be written as a sum of positive squares in 2 ways, for example, as 100620961 + 21669025 = 10031^2 + 4655^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122289986.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46721 + ... + 49268.

Almost surely, 2^122289986 is an apocalyptic number.

122289986 is a deficient number, since it is larger than the sum of its proper divisors (107510074).

122289986 is a wasteful number, since it uses less digits than its factorization.

122289986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96018 (or 96011 counting only the distinct ones).

The product of its digits is 248832, while the sum is 47.

The square root of 122289986 is about 11058.4802753362. The cubic root of 122289986 is about 496.3602162417.

The spelling of 122289986 in words is "one hundred twenty-two million, two hundred eighty-nine thousand, nine hundred eighty-six".