123200212 has 12 divisors (see below), whose sum is σ = 216083700. Its totient is φ = 61462016.

The previous prime is 123200197. The next prime is 123200219. The reversal of 123200212 is 212002321.

It can be written as a sum of positive squares in 2 ways, for example, as 41550916 + 81649296 = 6446^2 + 9036^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123200192 and 123200201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123200219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32503 + ... + 36094.

It is an arithmetic number, because the mean of its divisors is an integer number (18006975).

Almost surely, 2^123200212 is an apocalyptic number.

It is an amenable number.

123200212 is a deficient number, since it is larger than the sum of its proper divisors (92883488).

123200212 is a wasteful number, since it uses less digits than its factorization.

123200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69050 (or 69048 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 123200212 is about 11099.5590903423. The cubic root of 123200212 is about 497.5886723589.

Adding to 123200212 its reverse (212002321), we get a palindrome (335202533).

The spelling of 123200212 in words is "one hundred twenty-three million, two hundred thousand, two hundred twelve".