2101201220201 has 16 divisors (see below), whose sum is σ = 2120072030208. Its totient is φ = 2082375469200.

The previous prime is 2101201220191. The next prime is 2101201220267. The reversal of 2101201220201 is 1020221021012.

It is a cyclic number.

It is not a de Polignac number, because 2101201220201 - 2²⁶ = 2101134111337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101201220501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572376596 + ... + 572380266.

It is an arithmetic number, because the mean of its divisors is an integer number (132504501888).

Almost surely, 2^{2101201220201} is an apocalyptic number.

It is an amenable number.

2101201220201 is a deficient number, since it is larger than the sum of its proper divisors (18870810007).

2101201220201 is a wasteful number, since it uses less digits than its factorization.

2101201220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8452.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2101201220201 its reverse (1020221021012), we get a palindrome (3121422241213).

The spelling of 2101201220201 in words is "two trillion, one hundred one billion, two hundred one million, two hundred twenty thousand, two hundred one".