20022110111111 has 4 divisors (see below), whose sum is σ = 20022140702712. Its totient is φ = 20022079519512.

The previous prime is 20022110111077. The next prime is 20022110111207. The reversal of 20022110111111 is 11111101122002.

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 20022110111111 - 2³⁴ = 20004930241927 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 (20022110111011) 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, 14292101 + ... + 15630366.

It is an arithmetic number, because the mean of its divisors is an integer number (5005535175678).

Almost surely, 2^{20022110111111} is an apocalyptic number.

20022110111111 is a deficient number, since it is larger than the sum of its proper divisors (30591601).

20022110111111 is an equidigital number, since it uses as much as digits as its factorization.

20022110111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30591600.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 20022110111111 its reverse (11111101122002), we get a palindrome (31133211233113).

The spelling of 20022110111111 in words is "twenty trillion, twenty-two billion, one hundred ten million, one hundred eleven thousand, one hundred eleven".