11000120221 has 4 divisors (see below), whose sum is σ = 11000920000. Its totient is φ = 10999320444.

The previous prime is 11000120213. The next prime is 11000120269. The reversal of 11000120221 is 12202100011.

11000120221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12202100011 = 24623 ⋅495557.

It is a cyclic number.

It is not a de Polignac number, because 11000120221 - 2³ = 11000120213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11000120198 and 11000120207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000130221) 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 3 ways as a sum of consecutive naturals, for example, 378891 + ... + 406888.

It is an arithmetic number, because the mean of its divisors is an integer number (2750230000).

Almost surely, 2^11000120221 is an apocalyptic number.

It is an amenable number.

11000120221 is a deficient number, since it is larger than the sum of its proper divisors (799779).

11000120221 is an equidigital number, since it uses as much as digits as its factorization.

11000120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799778.

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

Adding to 11000120221 its reverse (12202100011), we get a palindrome (23202220232).

The spelling of 11000120221 in words is "eleven billion, one hundred twenty thousand, two hundred twenty-one".