2020221111 has 16 divisors (see below), whose sum is σ = 2703179520. Its totient is φ = 1342049280.

The previous prime is 2020221107. The next prime is 2020221121. The reversal of 2020221111 is 1111220202.

It is not a de Polignac number, because 2020221111 - 2² = 2020221107 is a prime.

It is a super-4 number, since 4×2020221111⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020221121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1651246 + ... + 1652468.

It is an arithmetic number, because the mean of its divisors is an integer number (168948720).

Almost surely, 2^2020221111 is an apocalyptic number.

2020221111 is a deficient number, since it is larger than the sum of its proper divisors (682958409).

2020221111 is a wasteful number, since it uses less digits than its factorization.

2020221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2020221111 is about 44946.8698687684. The cubic root of 2020221111 is about 1264.1529866018.

Adding to 2020221111 its reverse (1111220202), we get a palindrome (3131441313).

Subtracting from 2020221111 its reverse (1111220202), we obtain a palindrome (909000909).

The spelling of 2020221111 in words is "two billion, twenty million, two hundred twenty-one thousand, one hundred eleven".