2011243104221 has 8 divisors (see below), whose sum is σ = 2216325138720. Its totient is φ = 1813356930672.

The previous prime is 2011243104193. The next prime is 2011243104271. The reversal of 2011243104221 is 1224013421102.

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-2011243104221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011243104271) 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, 1798964651 + ... + 1798965768.

It is an arithmetic number, because the mean of its divisors is an integer number (277040642340).

Almost surely, 2^{2011243104221} is an apocalyptic number.

It is an amenable number.

2011243104221 is a deficient number, since it is larger than the sum of its proper divisors (205082034499).

2011243104221 is a wasteful number, since it uses less digits than its factorization.

2011243104221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597930475.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 2011243104221 its reverse (1224013421102), we get a palindrome (3235256525323).

The spelling of 2011243104221 in words is "two trillion, eleven billion, two hundred forty-three million, one hundred four thousand, two hundred twenty-one".