123224212 has 6 divisors (see below), whose sum is σ = 215642378. Its totient is φ = 61612104.

The previous prime is 123224191. The next prime is 123224243. The reversal of 123224212 is 212422321.

It can be written as a sum of positive squares in only one way, i.e., 117635716 + 5588496 = 10846^2 + 2364^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123224212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15403023 + ... + 15403030.

Almost surely, 2^123224212 is an apocalyptic number.

It is an amenable number.

123224212 is a deficient number, since it is larger than the sum of its proper divisors (92418166).

123224212 is a wasteful number, since it uses less digits than its factorization.

123224212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30806057 (or 30806055 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 123224212 is about 11100.6401617204. The cubic root of 123224212 is about 497.6209811582.

Adding to 123224212 its reverse (212422321), we get a palindrome (335646533).

The spelling of 123224212 in words is "one hundred twenty-three million, two hundred twenty-four thousand, two hundred twelve".