123122212 has 12 divisors (see below), whose sum is σ = 215561500. Its totient is φ = 61533216.

The previous prime is 123122189. The next prime is 123122231. The reversal of 123122212 is 212221321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21031396 + 102090816 = 4586^2 + 10104^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5398 + ... + 16594.

Almost surely, 2^123122212 is an apocalyptic number.

It is an amenable number.

123122212 is a deficient number, since it is larger than the sum of its proper divisors (92439288).

123122212 is a wasteful number, since it uses less digits than its factorization.

123122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13950 (or 13948 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 123122212 is about 11096.0448809474. The cubic root of 123122212 is about 497.4836397741.

Adding to 123122212 its reverse (212221321), we get a palindrome (335343533).

The spelling of 123122212 in words is "one hundred twenty-three million, one hundred twenty-two thousand, two hundred twelve".