21165022206201 has 8 divisors (see below), whose sum is σ = 28220055636160. Its totient is φ = 14110001790192.

The previous prime is 21165022206191. The next prime is 21165022206217. The reversal of 21165022206201 is 10260222056112.

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

It is not a de Polignac number, because 21165022206201 - 2⁶ = 21165022206137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21165022206001) 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, 1557660 + ... + 6690018.

It is an arithmetic number, because the mean of its divisors is an integer number (3527506954520).

Almost surely, 2^{21165022206201} is an apocalyptic number.

It is an amenable number.

21165022206201 is a deficient number, since it is larger than the sum of its proper divisors (7055033429959).

21165022206201 is a wasteful number, since it uses less digits than its factorization.

21165022206201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6506975.

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 21165022206201 in words is "twenty-one trillion, one hundred sixty-five billion, twenty-two million, two hundred six thousand, two hundred one".