212233213331 has 4 divisors (see below), whose sum is σ = 212475213312. Its totient is φ = 211991213352.

The previous prime is 212233213279. The next prime is 212233213397. The reversal of 212233213331 is 133312332212.

212233213331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 212233213331 - 2²⁶ = 212166104467 is a prime.

It is a super-2 number, since 2×212233213331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212233213331.

It is not an unprimeable number, because it can be changed into a prime (212233213531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120998675 + ... + 121000428.

It is an arithmetic number, because the mean of its divisors is an integer number (53118803328).

Almost surely, 2^212233213331 is an apocalyptic number.

212233213331 is a deficient number, since it is larger than the sum of its proper divisors (241999981).

212233213331 is an equidigital number, since it uses as much as digits as its factorization.

212233213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241999980.

The product of its digits is 3888, while the sum is 26.

Adding to 212233213331 its reverse (133312332212), we get a palindrome (345545545543).

The spelling of 212233213331 in words is "two hundred twelve billion, two hundred thirty-three million, two hundred thirteen thousand, three hundred thirty-one".