201001020001 has 16 divisors (see below), whose sum is σ = 208793991168. Its totient is φ = 193293676800.

The previous prime is 201001019983. The next prime is 201001020049. The reversal of 201001020001 is 100020100102.

It is a cyclic number.

It is not a de Polignac number, because 201001020001 - 2¹⁹ = 201000495713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201001020091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3165501 + ... + 3228373.

It is an arithmetic number, because the mean of its divisors is an integer number (13049624448).

Almost surely, 2^201001020001 is an apocalyptic number.

It is an amenable number.

201001020001 is a deficient number, since it is larger than the sum of its proper divisors (7792971167).

201001020001 is a wasteful number, since it uses less digits than its factorization.

201001020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63552.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 201001020001 its reverse (100020100102), we get a palindrome (301021120103).

The spelling of 201001020001 in words is "two hundred one billion, one million, twenty thousand, one".