11223504533221 has 8 divisors (see below), whose sum is σ = 11883746928024. Its totient is φ = 10563266165760.

The previous prime is 11223504533191. The next prime is 11223504533251. The reversal of 11223504533221 is 12233540532211.

It is an interprime number because it is at equal distance from previous prime (11223504533191) and next prime (11223504533251).

It can be written as a sum of positive squares in 4 ways, for example, as 4865597756100 + 6357906777121 = 2205810^2 + 2521489^2 .

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 11223504533221 - 2⁷ = 11223504533093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223504533251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6207951 + ... + 7809331.

It is an arithmetic number, because the mean of its divisors is an integer number (1485468366003).

Almost surely, 2^{11223504533221} is an apocalyptic number.

It is an amenable number.

11223504533221 is a deficient number, since it is larger than the sum of its proper divisors (660242394803).

11223504533221 is a wasteful number, since it uses less digits than its factorization.

11223504533221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013671.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 11223504533221 in words is "eleven trillion, two hundred twenty-three billion, five hundred four million, five hundred thirty-three thousand, two hundred twenty-one".