212234223031 has 4 divisors (see below), whose sum is σ = 212317422064. Its totient is φ = 212151024000.

The previous prime is 212234222989. The next prime is 212234223077. The reversal of 212234223031 is 130322432212.

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 212234223031 - 2¹⁵ = 212234190263 is a prime.

It is a super-2 number, since 2×212234223031² (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 = 212234222987 and 212234223005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212234223631) 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, 41595690 + ... + 41600791.

It is an arithmetic number, because the mean of its divisors is an integer number (53079355516).

Almost surely, 2^212234223031 is an apocalyptic number.

212234223031 is a deficient number, since it is larger than the sum of its proper divisors (83199033).

212234223031 is an equidigital number, since it uses as much as digits as its factorization.

212234223031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83199032.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 212234223031 its reverse (130322432212), we get a palindrome (342556655243).

The spelling of 212234223031 in words is "two hundred twelve billion, two hundred thirty-four million, two hundred twenty-three thousand, thirty-one".