21031010332201 has 4 divisors (see below), whose sum is σ = 21053895001600. Its totient is φ = 21008125662804.

The previous prime is 21031010332193. The next prime is 21031010332223. The reversal of 21031010332201 is 10223301013012.

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 not a de Polignac number, because 21031010332201 - 2³ = 21031010332193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21031010332261) 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, 11442333321 + ... + 11442335158.

It is an arithmetic number, because the mean of its divisors is an integer number (5263473750400).

Almost surely, 2^{21031010332201} is an apocalyptic number.

It is an amenable number.

21031010332201 is a deficient number, since it is larger than the sum of its proper divisors (22884669399).

21031010332201 is an equidigital number, since it uses as much as digits as its factorization.

21031010332201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22884669398.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21031010332201 its reverse (10223301013012), we get a palindrome (31254311345213).

The spelling of 21031010332201 in words is "twenty-one trillion, thirty-one billion, ten million, three hundred thirty-two thousand, two hundred one".