11412221321 has 4 divisors (see below), whose sum is σ = 11431210644. Its totient is φ = 11393232000.

The previous prime is 11412221311. The next prime is 11412221341. The reversal of 11412221321 is 12312221411.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9880360000 + 1531861321 = 99400^2 + 39139^2 .

It is a cyclic number.

It is not a de Polignac number, because 11412221321 - 2¹⁸ = 11411959177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11412221293 and 11412221302.

It is not an unprimeable number, because it can be changed into a prime (11412221311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9493760 + ... + 9494961.

It is an arithmetic number, because the mean of its divisors is an integer number (2857802661).

Almost surely, 2^11412221321 is an apocalyptic number.

It is an amenable number.

11412221321 is a deficient number, since it is larger than the sum of its proper divisors (18989323).

11412221321 is an equidigital number, since it uses as much as digits as its factorization.

11412221321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18989322.

The product of its digits is 192, while the sum is 20.

Adding to 11412221321 its reverse (12312221411), we get a palindrome (23724442732).

The spelling of 11412221321 in words is "eleven billion, four hundred twelve million, two hundred twenty-one thousand, three hundred twenty-one".