20112021220113 has 10 divisors (see below), whose sum is σ = 30043883551154. Its totient is φ = 13408014146688.

The previous prime is 20112021220051. The next prime is 20112021220117. The reversal of 20112021220113 is 31102212021102.

20112021220113 is a `hidden beast` number, since 201 + 120 + 212 + 20 + 113 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15283001785104 + 4829019435009 = 3909348^2 + 2197503^2 .

It is not a de Polignac number, because 20112021220113 - 2²² = 20112017025809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112021220117) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 124148279056 + ... + 124148279217.

Almost surely, 2^{20112021220113} is an apocalyptic number.

It is an amenable number.

20112021220113 is a deficient number, since it is larger than the sum of its proper divisors (9931862331041).

20112021220113 is an equidigital number, since it uses as much as digits as its factorization.

20112021220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248296558285 (or 248296558276 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 20112021220113 its reverse (31102212021102), we get a palindrome (51214233241215).

The spelling of 20112021220113 in words is "twenty trillion, one hundred twelve billion, twenty-one million, two hundred twenty thousand, one hundred thirteen".