22143111222231 has 32 divisors (see below), whose sum is σ = 33207880608000. Its totient is φ = 14580688116384.

The previous prime is 22143111222173. The next prime is 22143111222241. The reversal of 22143111222231 is 13222211134122.

22143111222231 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 311 + 122 + 223 + 1 = 666.

It is not a de Polignac number, because 22143111222231 - 2⁹ = 22143111221719 is a prime.

It is a super-2 number, since 2×22143111222231² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 22143111222195 and 22143111222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22143111222241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8081865 + ... + 10469133.

It is an arithmetic number, because the mean of its divisors is an integer number (1037746269000).

Almost surely, 2^{22143111222231} is an apocalyptic number.

22143111222231 is a deficient number, since it is larger than the sum of its proper divisors (11064769385769).

22143111222231 is a wasteful number, since it uses less digits than its factorization.

22143111222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391500 (or 2391494 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 22143111222231 its reverse (13222211134122), we get a palindrome (35365322356353).

The spelling of 22143111222231 in words is "twenty-two trillion, one hundred forty-three billion, one hundred eleven million, two hundred twenty-two thousand, two hundred thirty-one".