212333222011 has 4 divisors (see below), whose sum is σ = 212335034472. Its totient is φ = 212331409552.

The previous prime is 212333221987. The next prime is 212333222039. The reversal of 212333222011 is 110222333212.

212333222011 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 212333222011 - 2⁵ = 212333221979 is a prime.

It is a super-2 number, since 2×212333222011² (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 (212333222071) 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, 717385 + ... + 969178.

It is an arithmetic number, because the mean of its divisors is an integer number (53083758618).

Almost surely, 2^212333222011 is an apocalyptic number.

212333222011 is a deficient number, since it is larger than the sum of its proper divisors (1812461).

212333222011 is a wasteful number, since it uses less digits than its factorization.

212333222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812460.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212333222011 its reverse (110222333212), we get a palindrome (322555555223).

The spelling of 212333222011 in words is "two hundred twelve billion, three hundred thirty-three million, two hundred twenty-two thousand, eleven".