2021010201121 has 4 divisors (see below), whose sum is σ = 2021062909744. Its totient is φ = 2020957492500.

The previous prime is 2021010201083. The next prime is 2021010201137. The reversal of 2021010201121 is 1211020101202.

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 a cyclic number.

It is not a de Polignac number, because 2021010201121 - 2¹¹ = 2021010199073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021010202121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26296755 + ... + 26373496.

It is an arithmetic number, because the mean of its divisors is an integer number (505265727436).

Almost surely, 2^{2021010201121} is an apocalyptic number.

It is an amenable number.

2021010201121 is a deficient number, since it is larger than the sum of its proper divisors (52708623).

2021010201121 is an equidigital number, since it uses as much as digits as its factorization.

2021010201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52708622.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2021010201121 its reverse (1211020101202), we get a palindrome (3232030302323).

The spelling of 2021010201121 in words is "two trillion, twenty-one billion, ten million, two hundred one thousand, one hundred twenty-one".