2011220120201 has 4 divisors (see below), whose sum is σ = 2012448723012. Its totient is φ = 2009991517392.

The previous prime is 2011220120141. The next prime is 2011220120227. The reversal of 2011220120201 is 1020210221102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 914280192400 + 1096939927801 = 956180^2 + 1047349^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011220120201 - 2⁶ = 2011220120137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011220128201) 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, 614298950 + ... + 614302223.

It is an arithmetic number, because the mean of its divisors is an integer number (503112180753).

Almost surely, 2^{2011220120201} is an apocalyptic number.

It is an amenable number.

2011220120201 is a deficient number, since it is larger than the sum of its proper divisors (1228602811).

2011220120201 is a wasteful number, since it uses less digits than its factorization.

2011220120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228602810.

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

Adding to 2011220120201 its reverse (1020210221102), we get a palindrome (3031430341303).

The spelling of 2011220120201 in words is "two trillion, eleven billion, two hundred twenty million, one hundred twenty thousand, two hundred one".