220110120112021 has 16 divisors (see below), whose sum is σ = 224856706978800. Its totient is φ = 215415389376000.

The previous prime is 220110120112013. The next prime is 220110120112031. The reversal of 220110120112021 is 120211021011022.

It can be written as a sum of positive squares in 8 ways, for example, as 6870951562500 + 213239168549521 = 2621250^2 + 14602711^2 .

It is a cyclic number.

It is not a de Polignac number, because 220110120112021 - 2³ = 220110120112013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220110120111986 and 220110120112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220110120112031) 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, 25233811 + ... + 32817151.

It is an arithmetic number, because the mean of its divisors is an integer number (14053544186175).

Almost surely, 2^{220110120112021} is an apocalyptic number.

It is an amenable number.

220110120112021 is a deficient number, since it is larger than the sum of its proper divisors (4746586866779).

220110120112021 is a wasteful number, since it uses less digits than its factorization.

220110120112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7586760.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 220110120112021 its reverse (120211021011022), we get a palindrome (340321141123043).

The spelling of 220110120112021 in words is "two hundred twenty trillion, one hundred ten billion, one hundred twenty million, one hundred twelve thousand, twenty-one".