1110232321221 has 4 divisors (see below), whose sum is σ = 1480309761632. Its totient is φ = 740154880812.

The previous prime is 1110232321129. The next prime is 1110232321229. The reversal of 1110232321221 is 1221232320111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1110232321221 - 2¹⁴ = 1110232304837 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 (1110232321229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185038720201 + ... + 185038720206.

It is an arithmetic number, because the mean of its divisors is an integer number (370077440408).

Almost surely, 2^{1110232321221} is an apocalyptic number.

It is an amenable number.

1110232321221 is a deficient number, since it is larger than the sum of its proper divisors (370077440411).

1110232321221 is an equidigital number, since it uses as much as digits as its factorization.

1110232321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370077440410.

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

Adding to 1110232321221 its reverse (1221232320111), we get a palindrome (2331464641332).

The spelling of 1110232321221 in words is "one trillion, one hundred ten billion, two hundred thirty-two million, three hundred twenty-one thousand, two hundred twenty-one".