22103211121 has 2 divisors, whose sum is σ = 22103211122. Its totient is φ = 22103211120.

The previous prime is 22103211083. The next prime is 22103211131. The reversal of 22103211121 is 12111230122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19559421025 + 2543790096 = 139855^2 + 50436^2 .

It is a cyclic number.

It is not a de Polignac number, because 22103211121 - 2¹⁷ = 22103080049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22103211095 and 22103211104.

It is not a weakly prime, because it can be changed into another prime (22103211131) 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, 11051605560 + 11051605561.

It is an arithmetic number, because the mean of its divisors is an integer number (11051605561).

Almost surely, 2^22103211121 is an apocalyptic number.

It is an amenable number.

22103211121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22103211121 is an equidigital number, since it uses as much as digits as its factorization.

22103211121 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 22103211121 its reverse (12111230122), we get a palindrome (34214441243).

The spelling of 22103211121 in words is "twenty-two billion, one hundred three million, two hundred eleven thousand, one hundred twenty-one".