22111111012111 has 32 divisors (see below), whose sum is σ = 24558657048576. Its totient is φ = 19740203520000.

The previous prime is 22111111012103. The next prime is 22111111012117. The reversal of 22111111012111 is 11121011111122.

It is a cyclic number.

It is not a de Polignac number, because 22111111012111 - 2³ = 22111111012103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111111012117) 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 31 ways as a sum of consecutive naturals, for example, 81587316 + ... + 81857878.

It is an arithmetic number, because the mean of its divisors is an integer number (767458032768).

Almost surely, 2^{22111111012111} is an apocalyptic number.

22111111012111 is a deficient number, since it is larger than the sum of its proper divisors (2447546036465).

22111111012111 is a wasteful number, since it uses less digits than its factorization.

22111111012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271263.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 22111111012111 its reverse (11121011111122), we get a palindrome (33232122123233).

The spelling of 22111111012111 in words is "twenty-two trillion, one hundred eleven billion, one hundred eleven million, twelve thousand, one hundred eleven".