21032219999 has 8 divisors (see below), whose sum is σ = 24041423520. Its totient is φ = 18024166656.

The previous prime is 21032219959. The next prime is 21032220017. The reversal of 21032219999 is 99991223012.

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 21032219999 - 2⁸ = 21032219743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032219959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247994 + ... + 321815.

It is an arithmetic number, because the mean of its divisors is an integer number (3005177940).

Almost surely, 2^21032219999 is an apocalyptic number.

21032219999 is a deficient number, since it is larger than the sum of its proper divisors (3009203521).

21032219999 is an equidigital number, since it uses as much as digits as its factorization.

21032219999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575089.

The product of its (nonzero) digits is 157464, while the sum is 47.

The spelling of 21032219999 in words is "twenty-one billion, thirty-two million, two hundred nineteen thousand, nine hundred ninety-nine".