11210000000221 has 6 divisors (see below), whose sum is σ = 12321735537566. Its totient is φ = 10190909091000.

The previous prime is 11210000000207. The next prime is 11210000000249. The reversal of 11210000000221 is 12200000001211.

It can be written as a sum of positive squares in only one way, i.e., 9759444728121 + 1450555272100 = 3124011^2 + 1204390^2 .

It is not a de Polignac number, because 11210000000221 - 2⁷ = 11210000000093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11210000000198 and 11210000000207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210000000281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46322313930 + ... + 46322314171.

Almost surely, 2^{11210000000221} is an apocalyptic number.

11210000000221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11210000000221 is a deficient number, since it is larger than the sum of its proper divisors (1111735537345).

11210000000221 is an equidigital number, since it uses as much as digits as its factorization.

11210000000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92644628123 (or 92644628112 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11210000000221 its reverse (12200000001211), we get a palindrome (23410000001432).

The spelling of 11210000000221 in words is "eleven trillion, two hundred ten billion, two hundred twenty-one", and thus it is an aban number.