220020111101 has 24 divisors (see below), whose sum is σ = 268411996800. Its totient is φ = 179482498272.

The previous prime is 220020111071. The next prime is 220020111137. The reversal of 220020111101 is 101111020022.

It is not a de Polignac number, because 220020111101 - 2⁶ = 220020111037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220020111301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266246 + ... + 714791.

It is an arithmetic number, because the mean of its divisors is an integer number (11183833200).

Almost surely, 2^220020111101 is an apocalyptic number.

It is an amenable number.

220020111101 is a deficient number, since it is larger than the sum of its proper divisors (48391885699).

220020111101 is a wasteful number, since it uses less digits than its factorization.

220020111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981273 (or 981266 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 220020111101 its reverse (101111020022), we get a palindrome (321131131123).

The spelling of 220020111101 in words is "two hundred twenty billion, twenty million, one hundred eleven thousand, one hundred one".