1112031331221 has 4 divisors (see below), whose sum is σ = 1482708441632. Its totient is φ = 741354220812.

The previous prime is 1112031331163. The next prime is 1112031331231. The reversal of 1112031331221 is 1221331302111.

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 1112031331221 - 2⁶ = 1112031331157 is a prime.

It is a super-2 number, since 2×1112031331221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112031331231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185338555201 + ... + 185338555206.

It is an arithmetic number, because the mean of its divisors is an integer number (370677110408).

Almost surely, 2^{1112031331221} is an apocalyptic number.

It is an amenable number.

1112031331221 is a deficient number, since it is larger than the sum of its proper divisors (370677110411).

1112031331221 is an equidigital number, since it uses as much as digits as its factorization.

1112031331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370677110410.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1112031331221 its reverse (1221331302111), we get a palindrome (2333362633332).

The spelling of 1112031331221 in words is "one trillion, one hundred twelve billion, thirty-one million, three hundred thirty-one thousand, two hundred twenty-one".