2011120201221 has 8 divisors (see below), whose sum is σ = 2753966401824. Its totient is φ = 1304510400720.

The previous prime is 2011120201159. The next prime is 2011120201303. The reversal of 2011120201221 is 1221020211102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2011120201221 - 2⁶ = 2011120201157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2011120201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011120201721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9059099895 + ... + 9059100116.

It is an arithmetic number, because the mean of its divisors is an integer number (344245800228).

Almost surely, 2^{2011120201221} is an apocalyptic number.

It is an amenable number.

2011120201221 is a deficient number, since it is larger than the sum of its proper divisors (742846200603).

2011120201221 is a wasteful number, since it uses less digits than its factorization.

2011120201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18118200051.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2011120201221 its reverse (1221020211102), we get a palindrome (3232140412323).

The spelling of 2011120201221 in words is "two trillion, eleven billion, one hundred twenty million, two hundred one thousand, two hundred twenty-one".