22111012112111 has 16 divisors (see below), whose sum is σ = 23934649362624. Its totient is φ = 20304932922624.

The previous prime is 22111012112107. The next prime is 22111012112197. The reversal of 22111012112111 is 11121121011122.

It is a cyclic number.

It is not a de Polignac number, because 22111012112111 - 2² = 22111012112107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22111012112111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111012112411) 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 15 ways as a sum of consecutive naturals, for example, 32218430 + ... + 32897556.

It is an arithmetic number, because the mean of its divisors is an integer number (1495915585164).

Almost surely, 2^{22111012112111} is an apocalyptic number.

22111012112111 is a deficient number, since it is larger than the sum of its proper divisors (1823637250513).

22111012112111 is a wasteful number, since it uses less digits than its factorization.

22111012112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692050.

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

Adding to 22111012112111 its reverse (11121121011122), we get a palindrome (33232133123233).

The spelling of 22111012112111 in words is "twenty-two trillion, one hundred eleven billion, twelve million, one hundred twelve thousand, one hundred eleven".