220111120212211 has 4 divisors (see below), whose sum is σ = 220691888339800. Its totient is φ = 219530352084624.

The previous prime is 220111120212187. The next prime is 220111120212223. The reversal of 220111120212211 is 112212021111022.

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 220111120212211 - 2²⁵ = 220111086657779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220111120215211) 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, 290384063226 + ... + 290384063983.

It is an arithmetic number, because the mean of its divisors is an integer number (55172972084950).

Almost surely, 2^{220111120212211} is an apocalyptic number.

220111120212211 is a deficient number, since it is larger than the sum of its proper divisors (580768127589).

220111120212211 is an equidigital number, since it uses as much as digits as its factorization.

220111120212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580768127588.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 220111120212211 its reverse (112212021111022), we get a palindrome (332323141323233).

The spelling of 220111120212211 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred twenty million, two hundred twelve thousand, two hundred eleven".