212011303331 has 16 divisors (see below), whose sum is σ = 231655910400. Its totient is φ = 193287708000.

The previous prime is 212011303291. The next prime is 212011303333. The reversal of 212011303331 is 133303110212.

It is a cyclic number.

It is not a de Polignac number, because 212011303331 - 2¹⁴ = 212011286947 is a prime.

It is a super-2 number, since 2×212011303331² (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 (212011303333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 900020 + ... + 1110881.

It is an arithmetic number, because the mean of its divisors is an integer number (14478494400).

Almost surely, 2^212011303331 is an apocalyptic number.

212011303331 is a deficient number, since it is larger than the sum of its proper divisors (19644607069).

212011303331 is a wasteful number, since it uses less digits than its factorization.

212011303331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011130.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 212011303331 its reverse (133303110212), we get a palindrome (345314413543).

The spelling of 212011303331 in words is "two hundred twelve billion, eleven million, three hundred three thousand, three hundred thirty-one".