2111201021201 has 4 divisors (see below), whose sum is σ = 2142711484272. Its totient is φ = 2079690558132.

The previous prime is 2111201021191. The next prime is 2111201021213. The reversal of 2111201021201 is 1021201021112.

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 2111201021201 - 2¹⁰ = 2111201020177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111201621201) 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, 15755231435 + ... + 15755231568.

It is an arithmetic number, because the mean of its divisors is an integer number (535677871068).

Almost surely, 2^{2111201021201} is an apocalyptic number.

It is an amenable number.

2111201021201 is a deficient number, since it is larger than the sum of its proper divisors (31510463071).

2111201021201 is an equidigital number, since it uses as much as digits as its factorization.

2111201021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31510463070.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2111201021201 its reverse (1021201021112), we get a palindrome (3132402042313).

It can be divided in two parts, 211120 and 1021201, that added together give a palindrome (1232321).

The spelling of 2111201021201 in words is "two trillion, one hundred eleven billion, two hundred one million, twenty-one thousand, two hundred one".