21698599201 has 8 divisors (see below), whose sum is σ = 22061088000. Its totient is φ = 21336329040.

The previous prime is 21698599177. The next prime is 21698599253. The reversal of 21698599201 is 10299589612.

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 21698599201 - 2¹⁵ = 21698566433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21698599301) 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, 151950 + ... + 257848.

It is an arithmetic number, because the mean of its divisors is an integer number (2757636000).

Almost surely, 2^21698599201 is an apocalyptic number.

It is an amenable number.

21698599201 is a deficient number, since it is larger than the sum of its proper divisors (362488799).

21698599201 is a wasteful number, since it uses less digits than its factorization.

21698599201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109319.

The product of its (nonzero) digits is 699840, while the sum is 52.

The spelling of 21698599201 in words is "twenty-one billion, six hundred ninety-eight million, five hundred ninety-nine thousand, two hundred one".