212012330031 has 12 divisors (see below), whose sum is σ = 307218439008. Its totient is φ = 140889981024.

The previous prime is 212012329981. The next prime is 212012330041. The reversal of 212012330031 is 130033210212.

212012330031 is a `hidden beast` number, since 212 + 0 + 123 + 300 + 31 = 666.

It is not a de Polignac number, because 212012330031 - 2⁶ = 212012329967 is a prime.

It is a super-2 number, since 2×212012330031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212012329986 and 212012330013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012330041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37628055 + ... + 37633688.

It is an arithmetic number, because the mean of its divisors is an integer number (25601536584).

Almost surely, 2^212012330031 is an apocalyptic number.

212012330031 is a deficient number, since it is larger than the sum of its proper divisors (95206108977).

212012330031 is a wasteful number, since it uses less digits than its factorization.

212012330031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75262062 (or 75262059 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212012330031 its reverse (130033210212), we get a palindrome (342045540243).

The spelling of 212012330031 in words is "two hundred twelve billion, twelve million, three hundred thirty thousand, thirty-one".