3020221111 has 4 divisors (see below), whose sum is σ = 3020562424. Its totient is φ = 3019879800.

The previous prime is 3020221091. The next prime is 3020221123. The reversal of 3020221111 is 1111220203.

3020221111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3020221111 - 2¹³ = 3020212919 is a prime.

It is a super-4 number, since 4×3020221111⁴ (a number of 39 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3020221091 and 3020221100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020231111) 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, 157020 + ... + 175201.

It is an arithmetic number, because the mean of its divisors is an integer number (755140606).

Almost surely, 2^3020221111 is an apocalyptic number.

3020221111 is a deficient number, since it is larger than the sum of its proper divisors (341313).

3020221111 is an equidigital number, since it uses as much as digits as its factorization.

3020221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341312.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 3020221111 is about 54956.5383826165. The cubic root of 3020221111 is about 1445.4827489503.

Adding to 3020221111 its reverse (1111220203), we get a palindrome (4131441314).

The spelling of 3020221111 in words is "three billion, twenty million, two hundred twenty-one thousand, one hundred eleven".