22020221111 has 4 divisors (see below), whose sum is σ = 25165966992. Its totient is φ = 18874475232.

The previous prime is 22020221099. The next prime is 22020221143. The reversal of 22020221111 is 11112202022.

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 22020221111 - 2³⁰ = 20946479287 is a prime.

It is a super-4 number, since 4×22020221111⁴ (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020221711) 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, 1572872930 + ... + 1572872943.

It is an arithmetic number, because the mean of its divisors is an integer number (6291491748).

Almost surely, 2^22020221111 is an apocalyptic number.

22020221111 is a deficient number, since it is larger than the sum of its proper divisors (3145745881).

22020221111 is an equidigital number, since it uses as much as digits as its factorization.

22020221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145745880.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22020221111 its reverse (11112202022), we get a palindrome (33132423133).

It can be divided in two parts, 2202022 and 1111, that multiplied together give a palindrome (2446446442).

The spelling of 22020221111 in words is "twenty-two billion, twenty million, two hundred twenty-one thousand, one hundred eleven".