11022022212121 has 2 divisors, whose sum is σ = 11022022212122. Its totient is φ = 11022022212120.

The previous prime is 11022022212119. The next prime is 11022022212163. The reversal of 11022022212121 is 12121222022011.

11022022212121 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., 11021994963721 + 27248400 = 3319939^2 + 5220^2 .

It is a cyclic number.

It is not a de Polignac number, because 11022022212121 - 2¹ = 11022022212119 is a prime.

Together with 11022022212119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11022022212181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511011106060 + 5511011106061.

It is an arithmetic number, because the mean of its divisors is an integer number (5511011106061).

Almost surely, 2^{11022022212121} is an apocalyptic number.

It is an amenable number.

11022022212121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11022022212121 is an equidigital number, since it uses as much as digits as its factorization.

11022022212121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11022022212121 its reverse (12121222022011), we get a palindrome (23143244234132).

The spelling of 11022022212121 in words is "eleven trillion, twenty-two billion, twenty-two million, two hundred twelve thousand, one hundred twenty-one".