21033223201 has 8 divisors (see below), whose sum is σ = 21717736704. Its totient is φ = 20349086160.

The previous prime is 21033223199. The next prime is 21033223213. The reversal of 21033223201 is 10232233012.

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 21033223201 - 2¹ = 21033223199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21033223291) 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, 21726 + ... + 206248.

It is an arithmetic number, because the mean of its divisors is an integer number (2714717088).

Almost surely, 2^21033223201 is an apocalyptic number.

It is an amenable number.

21033223201 is a deficient number, since it is larger than the sum of its proper divisors (684513503).

21033223201 is a wasteful number, since it uses less digits than its factorization.

21033223201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188231.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21033223201 its reverse (10232233012), we get a palindrome (31265456213).

The spelling of 21033223201 in words is "twenty-one billion, thirty-three million, two hundred twenty-three thousand, two hundred one".