2021112110201 has 2 divisors, whose sum is σ = 2021112110202.
Its totient is φ = 2021112110200.
The previous prime is 2021112110167. The next prime is 2021112110209. The reversal of 2021112110201 is 1020112111202.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1874916764176 + 146195346025 = 1369276^2 + 382355^2
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2021112110201 is a prime.
It is a super-2 number, since 2×20211121102012 (a number of 25 digits) contains 22 as substring.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (2021112110209) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010556055100 + 1010556055101.
It is an arithmetic number, because the mean of its divisors is an integer number (1010556055101).
Almost surely, 22021112110201 is an apocalyptic number.
It is an amenable number.
2021112110201 is a deficient number, since it is larger than the sum of its proper divisors (1).
2021112110201 is an equidigital number, since it uses as much as digits as its factorization.
2021112110201 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 16, while the sum is 14.
Adding to 2021112110201 its reverse (1020112111202), we get a palindrome (3041224221403).
The spelling of 2021112110201 in words is "two trillion, twenty-one billion, one hundred twelve million, one hundred ten thousand, two hundred one".