11222123321 has 8 divisors (see below), whose sum is σ = 11395387080. Its totient is φ = 11050034688.

The previous prime is 11222123309. The next prime is 11222123357. The reversal of 11222123321 is 12332122211.

It can be written as a sum of positive squares in 4 ways, for example, as 5816197696 + 5405925625 = 76264^2 + 73525^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11222123321 - 2¹⁴ = 11222106937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11222123293 and 11222123302.

It is not an unprimeable number, because it can be changed into a prime (11222123921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274526 + ... + 312743.

It is an arithmetic number, because the mean of its divisors is an integer number (1424423385).

Almost surely, 2^11222123321 is an apocalyptic number.

It is an amenable number.

11222123321 is a deficient number, since it is larger than the sum of its proper divisors (173263759).

11222123321 is an equidigital number, since it uses as much as digits as its factorization.

11222123321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587563.

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

Adding to 11222123321 its reverse (12332122211), we get a palindrome (23554245532).

The spelling of 11222123321 in words is "eleven billion, two hundred twenty-two million, one hundred twenty-three thousand, three hundred twenty-one".