220120211101 has 16 divisors (see below), whose sum is σ = 259711172608. Its totient is φ = 182566969200.

The previous prime is 220120211093. The next prime is 220120211137. The reversal of 220120211101 is 101112021022.

It is not a de Polignac number, because 220120211101 - 2³ = 220120211093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220120211141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1973146 + ... + 2081716.

It is an arithmetic number, because the mean of its divisors is an integer number (16231948288).

Almost surely, 2^220120211101 is an apocalyptic number.

It is an amenable number.

220120211101 is a deficient number, since it is larger than the sum of its proper divisors (39590961507).

220120211101 is a wasteful number, since it uses less digits than its factorization.

220120211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117952.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220120211101 its reverse (101112021022), we get a palindrome (321232232123).

The spelling of 220120211101 in words is "two hundred twenty billion, one hundred twenty million, two hundred eleven thousand, one hundred one".