2111321023221 has 8 divisors (see below), whose sum is σ = 2937490119360. Its totient is φ = 1346349637952.

The previous prime is 2111321023199. The next prime is 2111321023241. The reversal of 2111321023221 is 1223201231112.

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

It is a cyclic number.

It is not a de Polignac number, because 2111321023221 - 2¹³ = 2111321015029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111321023241) 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, 15299427636 + ... + 15299427773.

It is an arithmetic number, because the mean of its divisors is an integer number (367186264920).

Almost surely, 2^{2111321023221} is an apocalyptic number.

It is an amenable number.

2111321023221 is a deficient number, since it is larger than the sum of its proper divisors (826169096139).

2111321023221 is a wasteful number, since it uses less digits than its factorization.

2111321023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30598855435.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2111321023221 its reverse (1223201231112), we get a palindrome (3334522254333).

The spelling of 2111321023221 in words is "two trillion, one hundred eleven billion, three hundred twenty-one million, twenty-three thousand, two hundred twenty-one".