2211312330331 has 4 divisors (see below), whose sum is σ = 2381413278832. Its totient is φ = 2041211381832.

The previous prime is 2211312330307. The next prime is 2211312330379. The reversal of 2211312330331 is 1330332131122.

2211312330331 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 2211312330331 - 2¹⁵ = 2211312297563 is a prime.

It is a super-2 number, since 2×2211312330331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211312330296 and 2211312330305.

It is not an unprimeable number, because it can be changed into a prime (2211312331331) 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, 85050474231 + ... + 85050474256.

It is an arithmetic number, because the mean of its divisors is an integer number (595353319708).

Almost surely, 2^{2211312330331} is an apocalyptic number.

2211312330331 is a deficient number, since it is larger than the sum of its proper divisors (170100948501).

2211312330331 is a wasteful number, since it uses less digits than its factorization.

2211312330331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170100948500.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 2211312330331 its reverse (1330332131122), we get a palindrome (3541644461453).

The spelling of 2211312330331 in words is "two trillion, two hundred eleven billion, three hundred twelve million, three hundred thirty thousand, three hundred thirty-one".