11012022022121 has 2 divisors, whose sum is σ = 11012022022122. Its totient is φ = 11012022022120.

The previous prime is 11012022022073. The next prime is 11012022022181. The reversal of 11012022022121 is 12122022021011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10720352898025 + 291669124096 = 3274195^2 + 540064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11012022022121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11012022022121.

It is not a weakly prime, because it can be changed into another prime (11012022022181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506011011060 + 5506011011061.

It is an arithmetic number, because the mean of its divisors is an integer number (5506011011061).

Almost surely, 2^{11012022022121} is an apocalyptic number.

It is an amenable number.

11012022022121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012022022121 is an equidigital number, since it uses as much as digits as its factorization.

11012022022121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11012022022121 its reverse (12122022021011), we get a palindrome (23134044043132).

The spelling of 11012022022121 in words is "eleven trillion, twelve billion, twenty-two million, twenty-two thousand, one hundred twenty-one".