201021212002201 has 4 divisors (see below), whose sum is σ = 201021245845504. Its totient is φ = 201021178158900.

The previous prime is 201021212002159. The next prime is 201021212002241. The reversal of 201021212002201 is 102200212120102.

It is a happy number.

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 201021212002201 - 2⁷ = 201021212002073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201021212002241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5394585 + ... + 20764006.

It is an arithmetic number, because the mean of its divisors is an integer number (50255311461376).

Almost surely, 2^{201021212002201} is an apocalyptic number.

It is an amenable number.

201021212002201 is a deficient number, since it is larger than the sum of its proper divisors (33843303).

201021212002201 is an equidigital number, since it uses as much as digits as its factorization.

201021212002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33843302.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201021212002201 its reverse (102200212120102), we get a palindrome (303221424122303).

The spelling of 201021212002201 in words is "two hundred one trillion, twenty-one billion, two hundred twelve million, two thousand, two hundred one".