11000000221 has 8 divisors (see below), whose sum is σ = 12572144960. Its totient is φ = 9428034528.

The previous prime is 11000000213. The next prime is 11000000233. The reversal of 11000000221 is 12200000011.

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 11000000221 - 2³ = 11000000213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000000021) 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, 135070 + ... + 200608.

It is an arithmetic number, because the mean of its divisors is an integer number (1571518120).

Almost surely, 2^11000000221 is an apocalyptic number.

It is an amenable number.

11000000221 is a deficient number, since it is larger than the sum of its proper divisors (1572144739).

11000000221 is an equidigital number, since it uses as much as digits as its factorization.

11000000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89523.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 11000000221 its reverse (12200000011), we get a palindrome (23200000232).

The spelling of 11000000221 in words is "eleven billion, two hundred twenty-one", and thus it is an aban number.