2021005111201 has 2 divisors, whose sum is σ = 2021005111202. Its totient is φ = 2021005111200.

The previous prime is 2021005111199. The next prime is 2021005111249. The reversal of 2021005111201 is 1021115001202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1831759230625 + 189245880576 = 1353425^2 + 435024^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021005111201 - 2¹ = 2021005111199 is a prime.

Together with 2021005111199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2021009111201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010502555600 + 1010502555601.

It is an arithmetic number, because the mean of its divisors is an integer number (1010502555601).

Almost surely, 2^{2021005111201} is an apocalyptic number.

It is an amenable number.

2021005111201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021005111201 is an equidigital number, since it uses as much as digits as its factorization.

2021005111201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 16.

The spelling of 2021005111201 in words is "two trillion, twenty-one billion, five million, one hundred eleven thousand, two hundred one".