21033212199 has 8 divisors (see below), whose sum is σ = 28045071600. Its totient is φ = 14021747136.

The previous prime is 21033212197. The next prime is 21033212219. The reversal of 21033212199 is 99121233012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21033212199 - 2¹ = 21033212197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033212197) 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 7 ways as a sum of consecutive naturals, for example, 64339 + ... + 214955.

It is an arithmetic number, because the mean of its divisors is an integer number (3505633950).

Almost surely, 2^21033212199 is an apocalyptic number.

21033212199 is a deficient number, since it is larger than the sum of its proper divisors (7011859401).

21033212199 is a wasteful number, since it uses less digits than its factorization.

21033212199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197169.

The product of its (nonzero) digits is 5832, while the sum is 33.

The spelling of 21033212199 in words is "twenty-one billion, thirty-three million, two hundred twelve thousand, one hundred ninety-nine".