21032302201 has 4 divisors (see below), whose sum is σ = 21521425552. Its totient is φ = 20543178852.

The previous prime is 21032302157. The next prime is 21032302219. The reversal of 21032302201 is 10220323012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21032302201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21032302261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244561611 + ... + 244561696.

It is an arithmetic number, because the mean of its divisors is an integer number (5380356388).

Almost surely, 2^21032302201 is an apocalyptic number.

It is an amenable number.

21032302201 is a deficient number, since it is larger than the sum of its proper divisors (489123351).

21032302201 is an equidigital number, since it uses as much as digits as its factorization.

21032302201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489123350.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21032302201 its reverse (10220323012), we get a palindrome (31252625213).

The spelling of 21032302201 in words is "twenty-one billion, thirty-two million, three hundred two thousand, two hundred one".