11221003213 has 4 divisors (see below), whose sum is σ = 12824003680. Its totient is φ = 9618002748.

The previous prime is 11221003207. The next prime is 11221003219. The reversal of 11221003213 is 31230012211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (11221003207) and next prime (11221003219).

It is a cyclic number.

It is not a de Polignac number, because 11221003213 - 2²⁹ = 10684132301 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 (11221003219) 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, 801500223 + ... + 801500236.

It is an arithmetic number, because the mean of its divisors is an integer number (3206000920).

Almost surely, 2^11221003213 is an apocalyptic number.

It is an amenable number.

11221003213 is a deficient number, since it is larger than the sum of its proper divisors (1603000467).

11221003213 is an equidigital number, since it uses as much as digits as its factorization.

11221003213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603000466.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11221003213 its reverse (31230012211), we get a palindrome (42451015424).

The spelling of 11221003213 in words is "eleven billion, two hundred twenty-one million, three thousand, two hundred thirteen".