11221422231 has 8 divisors (see below), whose sum is σ = 14969344384. Its totient is φ = 7477224120.

The previous prime is 11221422209. The next prime is 11221422257. The reversal of 11221422231 is 13222412211.

It is a happy number.

11221422231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11221422231 - 2¹⁰ = 11221421207 is a prime.

It is a super-2 number, since 2×11221422231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11221422198 and 11221422207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221422031) 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 7 ways as a sum of consecutive naturals, for example, 923971 + ... + 936036.

It is an arithmetic number, because the mean of its divisors is an integer number (1871168048).

Almost surely, 2^11221422231 is an apocalyptic number.

11221422231 is a deficient number, since it is larger than the sum of its proper divisors (3747922153).

11221422231 is a wasteful number, since it uses less digits than its factorization.

11221422231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862021.

The product of its digits is 384, while the sum is 21.

Adding to 11221422231 its reverse (13222412211), we get a palindrome (24443834442).

The spelling of 11221422231 in words is "eleven billion, two hundred twenty-one million, four hundred twenty-two thousand, two hundred thirty-one".