10521771219 has 6 divisors (see below), whose sum is σ = 15198113996. Its totient is φ = 7014514140.

The previous prime is 10521771217. The next prime is 10521771241. The reversal of 10521771219 is 91217712501.

10521771219 is a `hidden beast` number, since 1 + 0 + 521 + 7 + 7 + 121 + 9 = 666.

It is not a de Polignac number, because 10521771219 - 2¹ = 10521771217 is a prime.

It is a super-2 number, since 2×10521771219² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10521771217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 584542837 + ... + 584542854.

Almost surely, 2^10521771219 is an apocalyptic number.

10521771219 is a deficient number, since it is larger than the sum of its proper divisors (4676342777).

10521771219 is a wasteful number, since it uses less digits than its factorization.

10521771219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169085697 (or 1169085694 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 36.

The spelling of 10521771219 in words is "ten billion, five hundred twenty-one million, seven hundred seventy-one thousand, two hundred nineteen".