2011110120221 has 8 divisors (see below), whose sum is σ = 2039528502144. Its totient is φ = 1982694318640.

The previous prime is 2011110120163. The next prime is 2011110120223. The reversal of 2011110120221 is 1220210111102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011110120221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2011110120196 and 2011110120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011110120223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952475 + ... + 2220231.

It is an arithmetic number, because the mean of its divisors is an integer number (254941062768).

Almost surely, 2^{2011110120221} is an apocalyptic number.

It is an amenable number.

2011110120221 is a deficient number, since it is larger than the sum of its proper divisors (28418381923).

2011110120221 is a wasteful number, since it uses less digits than its factorization.

2011110120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290171.

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

Adding to 2011110120221 its reverse (1220210111102), we get a palindrome (3231320231323).

The spelling of 2011110120221 in words is "two trillion, eleven billion, one hundred ten million, one hundred twenty thousand, two hundred twenty-one".