11010505021 has 16 divisors (see below), whose sum is σ = 11274471936. Its totient is φ = 10750115376.

The previous prime is 11010504991. The next prime is 11010505027. The reversal of 11010505021 is 12050501011.

11010505021 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 11010505021 - 2¹⁷ = 11010373949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11010504986 and 11010505004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010505027) 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 15 ways as a sum of consecutive naturals, for example, 5496006 + ... + 5498008.

It is an arithmetic number, because the mean of its divisors is an integer number (704654496).

Almost surely, 2^11010505021 is an apocalyptic number.

It is an amenable number.

11010505021 is a deficient number, since it is larger than the sum of its proper divisors (263966915).

11010505021 is a wasteful number, since it uses less digits than its factorization.

11010505021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832.

The product of its (nonzero) digits is 50, while the sum is 16.

The spelling of 11010505021 in words is "eleven billion, ten million, five hundred five thousand, twenty-one".