2020001011121 has 2 divisors, whose sum is σ = 2020001011122. Its totient is φ = 2020001011120.

The previous prime is 2020001011087. The next prime is 2020001011123. The reversal of 2020001011121 is 1211101000202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2019965775025 + 35236096 = 1421255^2 + 5936^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020001011121 - 2¹⁸ = 2020000748977 is a prime.

Together with 2020001011123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2020001011123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010000505560 + 1010000505561.

It is an arithmetic number, because the mean of its divisors is an integer number (1010000505561).

Almost surely, 2^{2020001011121} is an apocalyptic number.

It is an amenable number.

2020001011121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020001011121 is an equidigital number, since it uses as much as digits as its factorization.

2020001011121 is an odious number, because the sum of its binary digits is odd.

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

Adding to 2020001011121 its reverse (1211101000202), we get a palindrome (3231102011323).

It can be divided in two parts, 202000 and 1011121, that added together give a palindrome (1213121).

The spelling of 2020001011121 in words is "two trillion, twenty billion, one million, eleven thousand, one hundred twenty-one".