220001100111 has 128 divisors (see below), whose sum is σ = 403832217600. Its totient is φ = 116819159040.

The previous prime is 220001100107. The next prime is 220001100127. The reversal of 220001100111 is 111001100022.

It is a happy number.

220001100111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220001100111 - 2² = 220001100107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 220001100093 and 220001100102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220001100161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3483265 + ... + 3545861.

It is an arithmetic number, because the mean of its divisors is an integer number (3154939200).

Almost surely, 2^220001100111 is an apocalyptic number.

220001100111 is a deficient number, since it is larger than the sum of its proper divisors (183831117489).

220001100111 is a wasteful number, since it uses less digits than its factorization.

220001100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62686 (or 62680 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 220001100111 its reverse (111001100022), we get a palindrome (331002200133).

The spelling of 220001100111 in words is "two hundred twenty billion, one million, one hundred thousand, one hundred eleven".