2020100111121 has 4 divisors (see below), whose sum is σ = 2693466814832. Its totient is φ = 1346733407412.

The previous prime is 2020100111119. The next prime is 2020100111129. The reversal of 2020100111121 is 1211110010202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2020100111121 - 2¹ = 2020100111119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020100111097 and 2020100111106.

It is not an unprimeable number, because it can be changed into a prime (2020100111129) 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 3 ways as a sum of consecutive naturals, for example, 336683351851 + ... + 336683351856.

It is an arithmetic number, because the mean of its divisors is an integer number (673366703708).

Almost surely, 2^{2020100111121} is an apocalyptic number.

It is an amenable number.

2020100111121 is a deficient number, since it is larger than the sum of its proper divisors (673366703711).

2020100111121 is an equidigital number, since it uses as much as digits as its factorization.

2020100111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673366703710.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2020100111121 its reverse (1211110010202), we get a palindrome (3231210121323).

The spelling of 2020100111121 in words is "two trillion, twenty billion, one hundred million, one hundred eleven thousand, one hundred twenty-one".