11012020201121 has 2 divisors, whose sum is σ = 11012020201122. Its totient is φ = 11012020201120.

The previous prime is 11012020201037. The next prime is 11012020201123. The reversal of 11012020201121 is 12110202021011.

11012020201121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9604389819025 + 1407630382096 = 3099095^2 + 1186436^2 .

It is an emirp because it is prime and its reverse (12110202021011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11012020201121 - 2³⁰ = 11010946459297 is a prime.

Together with 11012020201123, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11012020201096 and 11012020201105.

It is not a weakly prime, because it can be changed into another prime (11012020201123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506010100560 + 5506010100561.

It is an arithmetic number, because the mean of its divisors is an integer number (5506010100561).

Almost surely, 2^{11012020201121} is an apocalyptic number.

It is an amenable number.

11012020201121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012020201121 is an equidigital number, since it uses as much as digits as its factorization.

11012020201121 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 11012020201121 its reverse (12110202021011), we get a palindrome (23122222222132).

The spelling of 11012020201121 in words is "eleven trillion, twelve billion, twenty million, two hundred one thousand, one hundred twenty-one".