11000012210021 has 2 divisors, whose sum is σ = 11000012210022. Its totient is φ = 11000012210020.

The previous prime is 11000012210003. The next prime is 11000012210071. The reversal of 11000012210021 is 12001221000011.

11000012210021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10581267328996 + 418744881025 = 3252886^2 + 647105^2 .

It is an emirp because it is prime and its reverse (12001221000011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11000012210021 - 2³⁰ = 10998938468197 is a prime.

It is a super-2 number, since 2×11000012210021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11000012209984 and 11000012210011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11000012210071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500006105010 + 5500006105011.

It is an arithmetic number, because the mean of its divisors is an integer number (5500006105011).

Almost surely, 2^{11000012210021} is an apocalyptic number.

It is an amenable number.

11000012210021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000012210021 is an equidigital number, since it uses as much as digits as its factorization.

11000012210021 is an evil number, because the sum of its binary digits is even.

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

Adding to 11000012210021 its reverse (12001221000011), we get a palindrome (23001233210032).

The spelling of 11000012210021 in words is "eleven trillion, twelve million, two hundred ten thousand, twenty-one".