201001120210001 has 4 divisors (see below), whose sum is σ = 201001565167104. Its totient is φ = 201000675252900.

The previous prime is 201001120209991. The next prime is 201001120210117. The reversal of 201001120210001 is 100012021100102.

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 201001120210001 - 2⁶ = 201001120209937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201001120210201) 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, 221800265 + ... + 222704646.

It is an arithmetic number, because the mean of its divisors is an integer number (50250391291776).

Almost surely, 2^{201001120210001} is an apocalyptic number.

It is an amenable number.

201001120210001 is a deficient number, since it is larger than the sum of its proper divisors (444957103).

201001120210001 is an equidigital number, since it uses as much as digits as its factorization.

201001120210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444957102.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201001120210001 its reverse (100012021100102), we get a palindrome (301013141310103).

The spelling of 201001120210001 in words is "two hundred one trillion, one billion, one hundred twenty million, two hundred ten thousand, one".