220113111211 has 4 divisors (see below), whose sum is σ = 251557841392. Its totient is φ = 188668381032.

The previous prime is 220113111203. The next prime is 220113111217. The reversal of 220113111211 is 112111311022.

It is a happy number.

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 220113111211 - 2³ = 220113111203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220113111217) 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, 15722365080 + ... + 15722365093.

It is an arithmetic number, because the mean of its divisors is an integer number (62889460348).

Almost surely, 2^220113111211 is an apocalyptic number.

220113111211 is a deficient number, since it is larger than the sum of its proper divisors (31444730181).

220113111211 is an equidigital number, since it uses as much as digits as its factorization.

220113111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31444730180.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 220113111211 its reverse (112111311022), we get a palindrome (332224422233).

The spelling of 220113111211 in words is "two hundred twenty billion, one hundred thirteen million, one hundred eleven thousand, two hundred eleven".