11022222021121 has 2 divisors, whose sum is σ = 11022222021122. Its totient is φ = 11022222021120.

The previous prime is 11022222021091. The next prime is 11022222021133. The reversal of 11022222021121 is 12112022222011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10997182440000 + 25039581121 = 3316200^2 + 158239^2 .

It is a cyclic number.

It is not a de Polignac number, because 11022222021121 - 2⁵ = 11022222021089 is a prime.

It is not a weakly prime, because it can be changed into another prime (11022222025121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511111010560 + 5511111010561.

It is an arithmetic number, because the mean of its divisors is an integer number (5511111010561).

Almost surely, 2^{11022222021121} is an apocalyptic number.

It is an amenable number.

11022222021121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11022222021121 is an equidigital number, since it uses as much as digits as its factorization.

11022222021121 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 11022222021121 its reverse (12112022222011), we get a palindrome (23134244243132).

The spelling of 11022222021121 in words is "eleven trillion, twenty-two billion, two hundred twenty-two million, twenty-one thousand, one hundred twenty-one".