220220101111 has 4 divisors (see below), whose sum is σ = 220221116424. Its totient is φ = 220219085800.

The previous prime is 220220101093. The next prime is 220220101117. The reversal of 220220101111 is 111101022022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 111101022022 = 2 ⋅55550511011.

It is a cyclic number.

It is not a de Polignac number, because 220220101111 - 2¹¹ = 220220099063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220220101091 and 220220101100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220101117) 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, 36625 + ... + 664666.

It is an arithmetic number, because the mean of its divisors is an integer number (55055279106).

Almost surely, 2^220220101111 is an apocalyptic number.

220220101111 is a deficient number, since it is larger than the sum of its proper divisors (1015313).

220220101111 is an equidigital number, since it uses as much as digits as its factorization.

220220101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015312.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220220101111 its reverse (111101022022), we get a palindrome (331321123133).

The spelling of 220220101111 in words is "two hundred twenty billion, two hundred twenty million, one hundred one thousand, one hundred eleven".