11022123121 has 2 divisors, whose sum is σ = 11022123122. Its totient is φ = 11022123120.

The previous prime is 11022123113. The next prime is 11022123127. The reversal of 11022123121 is 12132122011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9029750625 + 1992372496 = 95025^2 + 44636^2 .

It is a cyclic number.

It is not a de Polignac number, because 11022123121 - 2³ = 11022123113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11022123095 and 11022123104.

It is not a weakly prime, because it can be changed into another prime (11022123127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511061560 + 5511061561.

It is an arithmetic number, because the mean of its divisors is an integer number (5511061561).

Almost surely, 2^11022123121 is an apocalyptic number.

It is an amenable number.

11022123121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11022123121 is an equidigital number, since it uses as much as digits as its factorization.

11022123121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11022123121 its reverse (12132122011), we get a palindrome (23154245132).

The spelling of 11022123121 in words is "eleven billion, twenty-two million, one hundred twenty-three thousand, one hundred twenty-one".