2020001101121 has 4 divisors (see below), whose sum is σ = 2020037300100. Its totient is φ = 2019964902144.

The previous prime is 2020001101117. The next prime is 2020001101163. The reversal of 2020001101121 is 1211011000202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1559591354896 + 460409746225 = 1248836^2 + 678535^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020001101121 - 2² = 2020001101117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020001101171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18015656 + ... + 18127433.

It is an arithmetic number, because the mean of its divisors is an integer number (505009325025).

Almost surely, 2^{2020001101121} is an apocalyptic number.

It is an amenable number.

2020001101121 is a deficient number, since it is larger than the sum of its proper divisors (36198979).

2020001101121 is an equidigital number, since it uses as much as digits as its factorization.

2020001101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36198978.

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

Adding to 2020001101121 its reverse (1211011000202), we get a palindrome (3231012101323).

The spelling of 2020001101121 in words is "two trillion, twenty billion, one million, one hundred one thousand, one hundred twenty-one".