220012122111 has 4 divisors (see below), whose sum is σ = 293349496152. Its totient is φ = 146674748072.

The previous prime is 220012122059. The next prime is 220012122131. The reversal of 220012122111 is 111221210022.

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 220012122111 - 2¹¹ = 220012120063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220012122131) 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, 36668687016 + ... + 36668687021.

It is an arithmetic number, because the mean of its divisors is an integer number (73337374038).

Almost surely, 2^220012122111 is an apocalyptic number.

220012122111 is a deficient number, since it is larger than the sum of its proper divisors (73337374041).

220012122111 is an equidigital number, since it uses as much as digits as its factorization.

220012122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73337374040.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 220012122111 its reverse (111221210022), we get a palindrome (331233332133).

The spelling of 220012122111 in words is "two hundred twenty billion, twelve million, one hundred twenty-two thousand, one hundred eleven".