11012002221 has 32 divisors (see below), whose sum is σ = 16133644800. Its totient is φ = 6625705280.

The previous prime is 11012002213. The next prime is 11012002237. The reversal of 11012002221 is 12220021011.

11012002221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11012002221 - 2³ = 11012002213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11012002197 and 11012002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012002201) 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 31 ways as a sum of consecutive naturals, for example, 2912110 + ... + 2915888.

It is an arithmetic number, because the mean of its divisors is an integer number (504176400).

Almost surely, 2^11012002221 is an apocalyptic number.

11012002221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11012002221 is a deficient number, since it is larger than the sum of its proper divisors (5121642579).

11012002221 is a wasteful number, since it uses less digits than its factorization.

11012002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4409.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11012002221 its reverse (12220021011), we get a palindrome (23232023232).

The spelling of 11012002221 in words is "eleven billion, twelve million, two thousand, two hundred twenty-one".