212234111031 has 16 divisors (see below), whose sum is σ = 283247435520. Its totient is φ = 141355157760.

The previous prime is 212234111027. The next prime is 212234111039. The reversal of 212234111031 is 130111432212.

It is not a de Polignac number, because 212234111031 - 2² = 212234111027 is a prime.

It is a super-2 number, since 2×212234111031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212234110989 and 212234111007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212234111039) 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 15 ways as a sum of consecutive naturals, for example, 28073230 + ... + 28080788.

It is an arithmetic number, because the mean of its divisors is an integer number (17702964720).

Almost surely, 2^212234111031 is an apocalyptic number.

212234111031 is a deficient number, since it is larger than the sum of its proper divisors (71013324489).

212234111031 is a wasteful number, since it uses less digits than its factorization.

212234111031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15206.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 212234111031 its reverse (130111432212), we get a palindrome (342345543243).

The spelling of 212234111031 in words is "two hundred twelve billion, two hundred thirty-four million, one hundred eleven thousand, thirty-one".