2231330211111 has 4 divisors (see below), whose sum is σ = 2975106948152. Its totient is φ = 1487553474072.

The previous prime is 2231330211107. The next prime is 2231330211127. The reversal of 2231330211111 is 1111120331322.

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

It is not a de Polignac number, because 2231330211111 - 2² = 2231330211107 is a prime.

It is a super-3 number, since 3×2231330211111³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231330211311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371888368516 + ... + 371888368521.

It is an arithmetic number, because the mean of its divisors is an integer number (743776737038).

Almost surely, 2^{2231330211111} is an apocalyptic number.

2231330211111 is a deficient number, since it is larger than the sum of its proper divisors (743776737041).

2231330211111 is an equidigital number, since it uses as much as digits as its factorization.

2231330211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743776737040.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2231330211111 its reverse (1111120331322), we get a palindrome (3342450542433).

The spelling of 2231330211111 in words is "two trillion, two hundred thirty-one billion, three hundred thirty million, two hundred eleven thousand, one hundred eleven".