2211112312231 has 8 divisors (see below), whose sum is σ = 2265061629600. Its totient is φ = 2157163935360.

The previous prime is 2211112312223. The next prime is 2211112312249. The reversal of 2211112312231 is 1322132111122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2211112312231 - 2³ = 2211112312223 is a prime.

It is a super-2 number, since 2×2211112312231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211112612231) 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 7 ways as a sum of consecutive naturals, for example, 8000115 + ... + 8271883.

It is an arithmetic number, because the mean of its divisors is an integer number (283132703700).

Almost surely, 2^{2211112312231} is an apocalyptic number.

2211112312231 is a deficient number, since it is larger than the sum of its proper divisors (53949317369).

2211112312231 is a wasteful number, since it uses less digits than its factorization.

2211112312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470249.

The product of its digits is 288, while the sum is 22.

Adding to 2211112312231 its reverse (1322132111122), we get a palindrome (3533244423353).

The spelling of 2211112312231 in words is "two trillion, two hundred eleven billion, one hundred twelve million, three hundred twelve thousand, two hundred thirty-one".