212101300331 has 4 divisors (see below), whose sum is σ = 216103211712. Its totient is φ = 208099388952.

The previous prime is 212101300223. The next prime is 212101300421. The reversal of 212101300331 is 133003101212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212101300331 is a prime.

It is a super-2 number, since 2×212101300331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212101300031) 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, 2000955611 + ... + 2000955716.

It is an arithmetic number, because the mean of its divisors is an integer number (54025802928).

Almost surely, 2^212101300331 is an apocalyptic number.

212101300331 is a deficient number, since it is larger than the sum of its proper divisors (4001911381).

212101300331 is an equidigital number, since it uses as much as digits as its factorization.

212101300331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001911380.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 212101300331 its reverse (133003101212), we get a palindrome (345104401543).

The spelling of 212101300331 in words is "two hundred twelve billion, one hundred one million, three hundred thousand, three hundred thirty-one".