11021000221 has 8 divisors (see below), whose sum is σ = 13740467904. Its totient is φ = 8587792320.

The previous prime is 11021000213. The next prime is 11021000231. The reversal of 11021000221 is 12200012011.

11021000221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11021000221 - 2³ = 11021000213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021000198 and 11021000207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021000201) 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 7 ways as a sum of consecutive naturals, for example, 71564860 + ... + 71565013.

It is an arithmetic number, because the mean of its divisors is an integer number (1717558488).

Almost surely, 2^11021000221 is an apocalyptic number.

11021000221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11021000221 is a deficient number, since it is larger than the sum of its proper divisors (2719467683).

11021000221 is a wasteful number, since it uses less digits than its factorization.

11021000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143129891.

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

Adding to 11021000221 its reverse (12200012011), we get a palindrome (23221012232).

The spelling of 11021000221 in words is "eleven billion, twenty-one million, two hundred twenty-one", and thus it is an aban number.