2231220322111 has 4 divisors (see below), whose sum is σ = 2434058533224. Its totient is φ = 2028382111000.

The previous prime is 2231220322109. The next prime is 2231220322139. The reversal of 2231220322111 is 1112230221322.

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 2231220322111 - 2¹ = 2231220322109 is a prime.

It is a super-3 number, since 3×2231220322111³ (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 (2231220322141) 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, 101419105540 + ... + 101419105561.

It is an arithmetic number, because the mean of its divisors is an integer number (608514633306).

Almost surely, 2^{2231220322111} is an apocalyptic number.

2231220322111 is a deficient number, since it is larger than the sum of its proper divisors (202838211113).

2231220322111 is a wasteful number, since it uses less digits than its factorization.

2231220322111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202838211112.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2231220322111 its reverse (1112230221322), we get a palindrome (3343450543433).

The spelling of 2231220322111 in words is "two trillion, two hundred thirty-one billion, two hundred twenty million, three hundred twenty-two thousand, one hundred eleven".