212210310231 has 12 divisors (see below), whose sum is σ = 307632599352. Its totient is φ = 140962803696.

The previous prime is 212210310227. The next prime is 212210310241. The reversal of 212210310231 is 132013012212.

212210310231 is a `hidden beast` number, since 2 + 122 + 1 + 0 + 310 + 231 = 666.

212210310231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212210310231 - 2² = 212210310227 is a prime.

It is a super-2 number, since 2×212210310231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210310241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42558741 + ... + 42563726.

It is an arithmetic number, because the mean of its divisors is an integer number (25636049946).

Almost surely, 2^212210310231 is an apocalyptic number.

212210310231 is a deficient number, since it is larger than the sum of its proper divisors (95422289121).

212210310231 is a wasteful number, since it uses less digits than its factorization.

212210310231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85122750 (or 85122747 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212210310231 its reverse (132013012212), we get a palindrome (344223322443).

The spelling of 212210310231 in words is "two hundred twelve billion, two hundred ten million, three hundred ten thousand, two hundred thirty-one".