201000210202001 has 4 divisors (see below), whose sum is σ = 229714525945152. Its totient is φ = 172285894458852.

The previous prime is 201000210201953. The next prime is 201000210202019. The reversal of 201000210202001 is 100202012000102.

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 201000210202001 - 2²⁶ = 201000143093137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201000210202021) 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, 14357157871565 + ... + 14357157871578.

It is an arithmetic number, because the mean of its divisors is an integer number (57428631486288).

Almost surely, 2^{201000210202001} is an apocalyptic number.

It is an amenable number.

201000210202001 is a deficient number, since it is larger than the sum of its proper divisors (28714315743151).

201000210202001 is an equidigital number, since it uses as much as digits as its factorization.

201000210202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28714315743150.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201000210202001 its reverse (100202012000102), we get a palindrome (301202222202103).

The spelling of 201000210202001 in words is "two hundred one trillion, two hundred ten million, two hundred two thousand, one".