21010000219 has 8 divisors (see below), whose sum is σ = 22687810880. Its totient is φ = 19340997696.

The previous prime is 21010000217. The next prime is 21010000223. The reversal of 21010000219 is 91200001012.

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 21010000219 - 2¹ = 21010000217 is a prime.

It is a super-2 number, since 2×21010000219² (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 (21010000217) 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, 2197074 + ... + 2206615.

It is an arithmetic number, because the mean of its divisors is an integer number (2835976360).

Almost surely, 2^21010000219 is an apocalyptic number.

21010000219 is a deficient number, since it is larger than the sum of its proper divisors (1677810661).

21010000219 is a wasteful number, since it uses less digits than its factorization.

21010000219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4404069.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 21010000219 in words is "twenty-one billion, ten million, two hundred nineteen", and thus it is an aban number.