22111111100111 has 8 divisors (see below), whose sum is σ = 24411829123584. Its totient is φ = 19858829245720.

The previous prime is 22111111100081. The next prime is 22111111100131. The reversal of 22111111100111 is 11100111111122.

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-22111111100111 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111111100131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12109041311 + ... + 12109043136.

It is an arithmetic number, because the mean of its divisors is an integer number (3051478640448).

Almost surely, 2^{22111111100111} is an apocalyptic number.

22111111100111 is a deficient number, since it is larger than the sum of its proper divisors (2300718023473).

22111111100111 is a wasteful number, since it uses less digits than its factorization.

22111111100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24218084541.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 22111111100111 its reverse (11100111111122), we get a palindrome (33211222211233).

It can be divided in two parts, 22111111 and 100111, that added together give a palindrome (22211222).

The spelling of 22111111100111 in words is "twenty-two trillion, one hundred eleven billion, one hundred eleven million, one hundred thousand, one hundred eleven".