123201212 has 24 divisors (see below), whose sum is σ = 220267152. Its totient is φ = 60278400.

The previous prime is 123201167. The next prime is 123201233. The reversal of 123201212 is 212102321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50288 + ... + 52680.

It is an arithmetic number, because the mean of its divisors is an integer number (9177798).

Almost surely, 2^123201212 is an apocalyptic number.

It is an amenable number.

123201212 is a deficient number, since it is larger than the sum of its proper divisors (97065940).

123201212 is a wasteful number, since it uses less digits than its factorization.

123201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669 (or 2667 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 123201212 is about 11099.6041370853. The cubic root of 123201212 is about 497.5900186426.

Adding to 123201212 its reverse (212102321), we get a palindrome (335303533).

The spelling of 123201212 in words is "one hundred twenty-three million, two hundred one thousand, two hundred twelve".