22111000111111 has 8 divisors (see below), whose sum is σ = 22144019801904. Its totient is φ = 22077981481920.

The previous prime is 22111000111061. The next prime is 22111000111121. The reversal of 22111000111111 is 11111100011122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22111000111111 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 22111000111091 and 22111000111100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111000111121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47946516 + ... + 48405478.

It is an arithmetic number, because the mean of its divisors is an integer number (2768002475238).

Almost surely, 2^{22111000111111} is an apocalyptic number.

22111000111111 is a deficient number, since it is larger than the sum of its proper divisors (33019690793).

22111000111111 is an equidigital number, since it uses as much as digits as its factorization.

22111000111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530801.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 22111000111111 its reverse (11111100011122), we get a palindrome (33222100122233).

The spelling of 22111000111111 in words is "twenty-two trillion, one hundred eleven billion, one hundred eleven thousand, one hundred eleven".