1100322121 has 2 divisors, whose sum is σ = 1100322122. Its totient is φ = 1100322120.

The previous prime is 1100322109. The next prime is 1100322149. The reversal of 1100322121 is 1212230011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1002608896 + 97713225 = 31664^2 + 9885^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100322121 - 2⁷ = 1100321993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1100322521) 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, 550161060 + 550161061.

It is an arithmetic number, because the mean of its divisors is an integer number (550161061).

Almost surely, 2^1100322121 is an apocalyptic number.

It is an amenable number.

1100322121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100322121 is an equidigital number, since it uses as much as digits as its factorization.

1100322121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1100322121 is about 33171.1037048815. The cubic root of 1100322121 is about 1032.3808689868.

Adding to 1100322121 its reverse (1212230011), we get a palindrome (2312552132).

It can be divided in two parts, 11003 and 22121, that added together give a square (33124 = 182²).

The spelling of 1100322121 in words is "one billion, one hundred million, three hundred twenty-two thousand, one hundred twenty-one".