21322857929099 has 8 divisors (see below), whose sum is σ = 21383439879600. Its totient is φ = 21262276980736.

The previous prime is 21322857929089. The next prime is 21322857929111. The reversal of 21322857929099 is 99092975822312.

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 21322857929099 - 2⁴ = 21322857929083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21322857929069) 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, 71392427 + ... + 71690475.

It is an arithmetic number, because the mean of its divisors is an integer number (2672929984950).

Almost surely, 2^{21322857929099} is an apocalyptic number.

21322857929099 is a deficient number, since it is larger than the sum of its proper divisors (60581950501).

21322857929099 is a wasteful number, since it uses less digits than its factorization.

21322857929099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501069.

The product of its (nonzero) digits is 88179840, while the sum is 68.

The spelling of 21322857929099 in words is "twenty-one trillion, three hundred twenty-two billion, eight hundred fifty-seven million, nine hundred twenty-nine thousand, ninety-nine".