123212310212 has 24 divisors (see below), whose sum is σ = 222664899072. Its totient is φ = 59595336000.

The previous prime is 123212310211. The next prime is 123212310229. The reversal of 123212310212 is 212013212321.

It is not an unprimeable number, because it can be changed into a prime (123212310211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121568 + ... + 511080.

It is an arithmetic number, because the mean of its divisors is an integer number (9277704128).

Almost surely, 2^123212310212 is an apocalyptic number.

It is an amenable number.

123212310212 is a deficient number, since it is larger than the sum of its proper divisors (99452588860).

123212310212 is a wasteful number, since it uses less digits than its factorization.

123212310212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392099 (or 392097 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123212310212 its reverse (212013212321), we get a palindrome (335225522533).

The spelling of 123212310212 in words is "one hundred twenty-three billion, two hundred twelve million, three hundred ten thousand, two hundred twelve".