22120011121111 has 4 divisors (see below), whose sum is σ = 22368550572000. Its totient is φ = 21871471670224.

The previous prime is 22120011121099. The next prime is 22120011121163. The reversal of 22120011121111 is 11112111002122.

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

It is a cyclic number.

It is not a de Polignac number, because 22120011121111 - 2¹⁷ = 22120010990039 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 (22120011127111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124269725311 + ... + 124269725488.

It is an arithmetic number, because the mean of its divisors is an integer number (5592137643000).

Almost surely, 2^{22120011121111} is an apocalyptic number.

22120011121111 is a deficient number, since it is larger than the sum of its proper divisors (248539450889).

22120011121111 is an equidigital number, since it uses as much as digits as its factorization.

22120011121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248539450888.

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

Adding to 22120011121111 its reverse (11112111002122), we get a palindrome (33232122123233).

The spelling of 22120011121111 in words is "twenty-two trillion, one hundred twenty billion, eleven million, one hundred twenty-one thousand, one hundred eleven".