2231110113221 has 8 divisors (see below), whose sum is σ = 2434105634688. Its totient is φ = 2028142480000.

The previous prime is 2231110113217. The next prime is 2231110113257. The reversal of 2231110113221 is 1223110111322.

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 2231110113221 - 2² = 2231110113217 is a prime.

It is a super-3 number, since 3×2231110113221³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231110113193 and 2231110113202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231110113521) 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, 6804605 + ... + 7124946.

It is an arithmetic number, because the mean of its divisors is an integer number (304263204336).

Almost surely, 2^{2231110113221} is an apocalyptic number.

It is an amenable number.

2231110113221 is a deficient number, since it is larger than the sum of its proper divisors (202995521467).

2231110113221 is a wasteful number, since it uses less digits than its factorization.

2231110113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13944123.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2231110113221 its reverse (1223110111322), we get a palindrome (3454220224543).

The spelling of 2231110113221 in words is "two trillion, two hundred thirty-one billion, one hundred ten million, one hundred thirteen thousand, two hundred twenty-one".