22020011021111 has 4 divisors (see below), whose sum is σ = 22615146454152. Its totient is φ = 21424875588072.

The previous prime is 22020011021093. The next prime is 22020011021137. The reversal of 22020011021111 is 11112011002022.

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 22020011021111 - 2¹⁰ = 22020011020087 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 (22020011023111) 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, 297567716465 + ... + 297567716538.

It is an arithmetic number, because the mean of its divisors is an integer number (5653786613538).

Almost surely, 2^{22020011021111} is an apocalyptic number.

22020011021111 is a deficient number, since it is larger than the sum of its proper divisors (595135433041).

22020011021111 is an equidigital number, since it uses as much as digits as its factorization.

22020011021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595135433040.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22020011021111 its reverse (11112011002022), we get a palindrome (33132022023133).

The spelling of 22020011021111 in words is "twenty-two trillion, twenty billion, eleven million, twenty-one thousand, one hundred eleven".