21332123201 has 8 divisors (see below), whose sum is σ = 21445584000. Its totient is φ = 21218725440.

The previous prime is 21332123179. The next prime is 21332123221. The reversal of 21332123201 is 10232123312.

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-21332123201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21332123221) 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, 764585 + ... + 791993.

It is an arithmetic number, because the mean of its divisors is an integer number (2680698000).

Almost surely, 2^21332123201 is an apocalyptic number.

It is an amenable number.

21332123201 is a deficient number, since it is larger than the sum of its proper divisors (113460799).

21332123201 is a wasteful number, since it uses less digits than its factorization.

21332123201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31519.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21332123201 its reverse (10232123312), we get a palindrome (31564246513).

The spelling of 21332123201 in words is "twenty-one billion, three hundred thirty-two million, one hundred twenty-three thousand, two hundred one".