2011120121201 has 4 divisors (see below), whose sum is σ = 2011533002304. Its totient is φ = 2010707240100.

The previous prime is 2011120121161. The next prime is 2011120121203. The reversal of 2011120121201 is 1021210211102.

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 a de Polignac number, because none of the positive numbers 2^k-2011120121201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011120121203) 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, 206433245 + ... + 206442986.

It is an arithmetic number, because the mean of its divisors is an integer number (502883250576).

Almost surely, 2^{2011120121201} is an apocalyptic number.

It is an amenable number.

2011120121201 is a deficient number, since it is larger than the sum of its proper divisors (412881103).

2011120121201 is an equidigital number, since it uses as much as digits as its factorization.

2011120121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412881102.

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

Adding to 2011120121201 its reverse (1021210211102), we get a palindrome (3032330332303).

The spelling of 2011120121201 in words is "two trillion, eleven billion, one hundred twenty million, one hundred twenty-one thousand, two hundred one".