21302122220999 has 8 divisors (see below), whose sum is σ = 22437119576880. Its totient is φ = 20168508168000.

The previous prime is 21302122220971. The next prime is 21302122221013. The reversal of 21302122220999 is 99902222120312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21302122220999 is a prime.

It is a super-2 number, since 2×21302122220999² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302182220999) 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, 345794102 + ... + 345855699.

It is an arithmetic number, because the mean of its divisors is an integer number (2804639947110).

Almost surely, 2^{21302122220999} is an apocalyptic number.

21302122220999 is a deficient number, since it is larger than the sum of its proper divisors (1134997355881).

21302122220999 is a wasteful number, since it uses less digits than its factorization.

21302122220999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691651441.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 21302122220999 in words is "twenty-one trillion, three hundred two billion, one hundred twenty-two million, two hundred twenty thousand, nine hundred ninety-nine".