22111210112111 has 4 divisors (see below), whose sum is σ = 22414103401392. Its totient is φ = 21808316822832.

The previous prime is 22111210112077. The next prime is 22111210112149. The reversal of 22111210112111 is 11121101211122.

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 22111210112111 - 2¹⁴ = 22111210095727 is a prime.

It is a super-2 number, since 2×22111210112111² (a number of 27 digits) contains 22 as substring.

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 22111210112111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111210112611) 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, 151446644531 + ... + 151446644676.

It is an arithmetic number, because the mean of its divisors is an integer number (5603525850348).

Almost surely, 2^{22111210112111} is an apocalyptic number.

22111210112111 is a deficient number, since it is larger than the sum of its proper divisors (302893289281).

22111210112111 is an equidigital number, since it uses as much as digits as its factorization.

22111210112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302893289280.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 22111210112111 its reverse (11121101211122), we get a palindrome (33232311323233).

The spelling of 22111210112111 in words is "twenty-two trillion, one hundred eleven billion, two hundred ten million, one hundred twelve thousand, one hundred eleven".