22101022012111 has 4 divisors (see below), whose sum is σ = 25258310870992. Its totient is φ = 18943733153232.

The previous prime is 22101022012099. The next prime is 22101022012163. The reversal of 22101022012111 is 11121022010122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22101022012111 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 (22101022052111) 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 3 ways as a sum of consecutive naturals, for example, 1578644429430 + ... + 1578644429443.

It is an arithmetic number, because the mean of its divisors is an integer number (6314577717748).

Almost surely, 2^{22101022012111} is an apocalyptic number.

22101022012111 is a deficient number, since it is larger than the sum of its proper divisors (3157288858881).

22101022012111 is an equidigital number, since it uses as much as digits as its factorization.

22101022012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157288858880.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22101022012111 its reverse (11121022010122), we get a palindrome (33222044022233).

The spelling of 22101022012111 in words is "twenty-two trillion, one hundred one billion, twenty-two million, twelve thousand, one hundred eleven".