11132222231 has 4 divisors (see below), whose sum is σ = 11988547032. Its totient is φ = 10275897432.

The previous prime is 11132222221. The next prime is 11132222243. The reversal of 11132222231 is 13222223111.

11132222231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11132222231 - 2¹⁰ = 11132221207 is a prime.

It is a super-2 number, since 2×11132222231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11132222201) 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 in 3 ways as a sum of consecutive naturals, for example, 428162381 + ... + 428162406.

It is an arithmetic number, because the mean of its divisors is an integer number (2997136758).

Almost surely, 2^11132222231 is an apocalyptic number.

11132222231 is a deficient number, since it is larger than the sum of its proper divisors (856324801).

11132222231 is an equidigital number, since it uses as much as digits as its factorization.

11132222231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856324800.

The product of its digits is 288, while the sum is 20.

Adding to 11132222231 its reverse (13222223111), we get a palindrome (24354445342).

It can be divided in two parts, 11 and 132222231, that multiplied together give a palindrome (1454444541).

The spelling of 11132222231 in words is "eleven billion, one hundred thirty-two million, two hundred twenty-two thousand, two hundred thirty-one".