11022022221121 has 2 divisors, whose sum is σ = 11022022221122. Its totient is φ = 11022022221120.

The previous prime is 11022022221061. The next prime is 11022022221149. The reversal of 11022022221121 is 12112222022011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11021968404225 + 53816896 = 3319935^2 + 7336^2 .

It is a cyclic number.

It is not a de Polignac number, because 11022022221121 - 2²¹ = 11022020123969 is a prime.

It is not a weakly prime, because it can be changed into another prime (11022022222121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511011110560 + 5511011110561.

It is an arithmetic number, because the mean of its divisors is an integer number (5511011110561).

Almost surely, 2^{11022022221121} is an apocalyptic number.

It is an amenable number.

11022022221121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11022022221121 is an equidigital number, since it uses as much as digits as its factorization.

11022022221121 is an odious number, because the sum of its binary digits is odd.

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

Adding to 11022022221121 its reverse (12112222022011), we get a palindrome (23134244243132).

The spelling of 11022022221121 in words is "eleven trillion, twenty-two billion, twenty-two million, two hundred twenty-one thousand, one hundred twenty-one".