11132222021 has 2 divisors, whose sum is σ = 11132222022. Its totient is φ = 11132222020.

The previous prime is 11132221981. The next prime is 11132222027. The reversal of 11132222021 is 12022223111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11120757025 + 11464996 = 105455^2 + 3386^2 .

It is a cyclic number.

It is not a de Polignac number, because 11132222021 - 2¹⁰ = 11132220997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11132222027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5566111010 + 5566111011.

It is an arithmetic number, because the mean of its divisors is an integer number (5566111011).

Almost surely, 2^11132222021 is an apocalyptic number.

It is an amenable number.

11132222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11132222021 is an equidigital number, since it uses as much as digits as its factorization.

11132222021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11132222021 its reverse (12022223111), we get a palindrome (23154445132).

The spelling of 11132222021 in words is "eleven billion, one hundred thirty-two million, two hundred twenty-two thousand, twenty-one".