212234212231 has 4 divisors (see below), whose sum is σ = 212247338200. Its totient is φ = 212221086264.

The previous prime is 212234212181. The next prime is 212234212273. The reversal of 212234212231 is 132212432212.

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 212234212231 - 2⁹ = 212234211719 is a prime.

It is a super-2 number, since 2×212234212231² (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 = 212234212196 and 212234212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212234212331) by changing a digit.

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, 6538701 + ... + 6571078.

It is an arithmetic number, because the mean of its divisors is an integer number (53061834550).

Almost surely, 2^212234212231 is an apocalyptic number.

212234212231 is a deficient number, since it is larger than the sum of its proper divisors (13125969).

212234212231 is a wasteful number, since it uses less digits than its factorization.

212234212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13125968.

The product of its digits is 2304, while the sum is 25.

Adding to 212234212231 its reverse (132212432212), we get a palindrome (344446644443).

The spelling of 212234212231 in words is "two hundred twelve billion, two hundred thirty-four million, two hundred twelve thousand, two hundred thirty-one".