220111120211111 has 8 divisors (see below), whose sum is σ = 220590182805504. Its totient is φ = 219632073396120.

The previous prime is 220111120211083. The next prime is 220111120211161. The reversal of 220111120211111 is 111112021111022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220111120211111 - 2¹⁰ = 220111120210087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220111120211111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111120211161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24202346 + ... + 32030856.

It is an arithmetic number, because the mean of its divisors is an integer number (27573772850688).

Almost surely, 2^{220111120211111} is an apocalyptic number.

220111120211111 is a deficient number, since it is larger than the sum of its proper divisors (479062594393).

220111120211111 is an equidigital number, since it uses as much as digits as its factorization.

220111120211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7889701.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 220111120211111 its reverse (111112021111022), we get a palindrome (331223141322133).

The spelling of 220111120211111 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred twenty million, two hundred eleven thousand, one hundred eleven".