212130110331 has 48 divisors (see below), whose sum is σ = 334923388800. Its totient is φ = 133800450048.

The previous prime is 212130110329. The next prime is 212130110333. The reversal of 212130110331 is 133011031212.

212130110331 is a `hidden beast` number, since 2 + 1 + 21 + 301 + 10 + 331 = 666.

It is an interprime number because it is at equal distance from previous prime (212130110329) and next prime (212130110333).

It is not a de Polignac number, because 212130110331 - 2¹ = 212130110329 is a prime.

It is a super-2 number, since 2×212130110331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212130110333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3520600 + ... + 3580346.

It is an arithmetic number, because the mean of its divisors is an integer number (6977570600).

Almost surely, 2^212130110331 is an apocalyptic number.

212130110331 is a deficient number, since it is larger than the sum of its proper divisors (122793278469).

212130110331 is an equidigital number, since it uses as much as digits as its factorization.

212130110331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60550 (or 60538 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 212130110331 its reverse (133011031212), we get a palindrome (345141141543).

The spelling of 212130110331 in words is "two hundred twelve billion, one hundred thirty million, one hundred ten thousand, three hundred thirty-one".