210112213231 has 4 divisors (see below), whose sum is σ = 210660809472. Its totient is φ = 209563616992.

The previous prime is 210112213219. The next prime is 210112213253. The reversal of 210112213231 is 132312211012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 210112213231 - 2⁹ = 210112212719 is a prime.

It is a super-2 number, since 2×210112213231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210112213199 and 210112213208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210112213211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274297546 + ... + 274298311.

It is an arithmetic number, because the mean of its divisors is an integer number (52665202368).

Almost surely, 2^210112213231 is an apocalyptic number.

210112213231 is a deficient number, since it is larger than the sum of its proper divisors (548596241).

210112213231 is an equidigital number, since it uses as much as digits as its factorization.

210112213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548596240.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 210112213231 its reverse (132312211012), we get a palindrome (342424424243).

The spelling of 210112213231 in words is "two hundred ten billion, one hundred twelve million, two hundred thirteen thousand, two hundred thirty-one".