21202203201 has 8 divisors (see below), whose sum is σ = 28627447680. Its totient is φ = 13955880432.

The previous prime is 21202203193. The next prime is 21202203247. The reversal of 21202203201 is 10230220212.

It is a happy number.

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

It is not a de Polignac number, because 21202203201 - 2³ = 21202203193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21202203101) 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, 44730150 + ... + 44730623.

It is an arithmetic number, because the mean of its divisors is an integer number (3578430960).

Almost surely, 2^21202203201 is an apocalyptic number.

It is an amenable number.

21202203201 is a deficient number, since it is larger than the sum of its proper divisors (7425244479).

21202203201 is an equidigital number, since it uses as much as digits as its factorization.

21202203201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89460855.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 21202203201 its reverse (10230220212), we get a palindrome (31432423413).

The spelling of 21202203201 in words is "twenty-one billion, two hundred two million, two hundred three thousand, two hundred one".