2111032220221 has 8 divisors (see below), whose sum is σ = 2222195482080. Its totient is φ = 1999874588688.

The previous prime is 2111032220207. The next prime is 2111032220243. The reversal of 2111032220221 is 1220222301112.

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 2111032220221 - 2⁵ = 2111032220189 is a prime.

It is a super-2 number, since 2×2111032220221² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111032220201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626851 + ... + 2148256.

It is an arithmetic number, because the mean of its divisors is an integer number (277774435260).

Almost surely, 2^{2111032220221} is an apocalyptic number.

It is an amenable number.

2111032220221 is a deficient number, since it is larger than the sum of its proper divisors (111163261859).

2111032220221 is a wasteful number, since it uses less digits than its factorization.

2111032220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815163.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2111032220221 its reverse (1220222301112), we get a palindrome (3331254521333).

The spelling of 2111032220221 in words is "two trillion, one hundred eleven billion, thirty-two million, two hundred twenty thousand, two hundred twenty-one".