212331220310212 has 12 divisors (see below), whose sum is σ = 391136458466320. Its totient is φ = 100577946462696.

The previous prime is 212331220310159. The next prime is 212331220310213. The reversal of 212331220310212 is 212013022133212.

It is a super-2 number, since 2×212331220310212² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212331220310213) 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, 1396915923018 + ... + 1396915923169.

Almost surely, 2^{212331220310212} is an apocalyptic number.

It is an amenable number.

212331220310212 is a deficient number, since it is larger than the sum of its proper divisors (178805238156108).

212331220310212 is a wasteful number, since it uses less digits than its factorization.

212331220310212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793831846210 (or 2793831846208 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 212331220310212 its reverse (212013022133212), we get a palindrome (424344242443424).

The spelling of 212331220310212 in words is "two hundred twelve trillion, three hundred thirty-one billion, two hundred twenty million, three hundred ten thousand, two hundred twelve".