11320223221 has 8 divisors (see below), whose sum is σ = 11687493888. Its totient is φ = 10953084000.

The previous prime is 11320223209. The next prime is 11320223251. The reversal of 11320223221 is 12232202311.

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 11320223221 - 2¹¹ = 11320221173 is a prime.

It is a super-2 number, since 2×11320223221² (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 (11320223251) 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, 160281 + ... + 219841.

It is an arithmetic number, because the mean of its divisors is an integer number (1460936736).

Almost surely, 2^11320223221 is an apocalyptic number.

It is an amenable number.

11320223221 is a deficient number, since it is larger than the sum of its proper divisors (367270667).

11320223221 is an equidigital number, since it uses as much as digits as its factorization.

11320223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65723.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11320223221 its reverse (12232202311), we get a palindrome (23552425532).

The spelling of 11320223221 in words is "eleven billion, three hundred twenty million, two hundred twenty-three thousand, two hundred twenty-one".