123210131202212 has 12 divisors (see below), whose sum is σ = 215635853393100. Its totient is φ = 61599887375616.

The previous prime is 123210131202173. The next prime is 123210131202299. The reversal of 123210131202212 is 212202131012321.

It can be written as a sum of positive squares in 2 ways, for example, as 119979074622016 + 3231056580196 = 10953496^2 + 1797514^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1294502837 + ... + 1294598012.

It is an arithmetic number, because the mean of its divisors is an integer number (17969654449425).

Almost surely, 2^{123210131202212} is an apocalyptic number.

It is an amenable number.

123210131202212 is a deficient number, since it is larger than the sum of its proper divisors (92425722190888).

123210131202212 is a wasteful number, since it uses less digits than its factorization.

123210131202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589112750 (or 2589112748 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 123210131202212 its reverse (212202131012321), we get a palindrome (335412262214533).

The spelling of 123210131202212 in words is "one hundred twenty-three trillion, two hundred ten billion, one hundred thirty-one million, two hundred two thousand, two hundred twelve".