22143420232111 has 4 divisors (see below), whose sum is σ = 22506427121224. Its totient is φ = 21780413343000.

The previous prime is 22143420232099. The next prime is 22143420232127. The reversal of 22143420232111 is 11123202434122.

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 22143420232111 - 2⁷ = 22143420231983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22143420232111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22143420232511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181503444465 + ... + 181503444586.

It is an arithmetic number, because the mean of its divisors is an integer number (5626606780306).

Almost surely, 2^{22143420232111} is an apocalyptic number.

22143420232111 is a deficient number, since it is larger than the sum of its proper divisors (363006889113).

22143420232111 is an equidigital number, since it uses as much as digits as its factorization.

22143420232111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363006889112.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 22143420232111 its reverse (11123202434122), we get a palindrome (33266622666233).

The spelling of 22143420232111 in words is "twenty-two trillion, one hundred forty-three billion, four hundred twenty million, two hundred thirty-two thousand, one hundred eleven".