2001020101201 has 4 divisors (see below), whose sum is σ = 2182931019504. Its totient is φ = 1819109182900.

The previous prime is 2001020101183. The next prime is 2001020101217. The reversal of 2001020101201 is 1021010201002.

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 2001020101201 - 2²⁹ = 2000483230289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001020101231) 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, 90955459135 + ... + 90955459156.

It is an arithmetic number, because the mean of its divisors is an integer number (545732754876).

Almost surely, 2^{2001020101201} is an apocalyptic number.

It is an amenable number.

2001020101201 is a deficient number, since it is larger than the sum of its proper divisors (181910918303).

2001020101201 is a wasteful number, since it uses less digits than its factorization.

2001020101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181910918302.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2001020101201 its reverse (1021010201002), we get a palindrome (3022030302203).

The spelling of 2001020101201 in words is "two trillion, one billion, twenty million, one hundred one thousand, two hundred one".