21210200011201 has 4 divisors (see below), whose sum is σ = 22326526327600. Its totient is φ = 20093873694804.

The previous prime is 21210200011199. The next prime is 21210200011223. The reversal of 21210200011201 is 10211000201212.

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 21210200011201 - 2¹ = 21210200011199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21210200011901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558163158171 + ... + 558163158208.

It is an arithmetic number, because the mean of its divisors is an integer number (5581631581900).

Almost surely, 2^{21210200011201} is an apocalyptic number.

It is an amenable number.

21210200011201 is a deficient number, since it is larger than the sum of its proper divisors (1116326316399).

21210200011201 is a wasteful number, since it uses less digits than its factorization.

21210200011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116326316398.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21210200011201 its reverse (10211000201212), we get a palindrome (31421200212413).

The spelling of 21210200011201 in words is "twenty-one trillion, two hundred ten billion, two hundred million, eleven thousand, two hundred one".