2231113223120 has 80 divisors (see below), whose sum is σ = 5284782645120. Its totient is φ = 875781975552.

The previous prime is 2231113223077. The next prime is 2231113223173. The reversal of 2231113223120 is 213223111322.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×2231113223120³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 618326 + ... + 2201034.

It is an arithmetic number, because the mean of its divisors is an integer number (66059783064).

Almost surely, 2^{2231113223120} is an apocalyptic number.

2231113223120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231113223120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2642391322560).

2231113223120 is an abundant number, since it is smaller than the sum of its proper divisors (3053669422000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2231113223120 is a wasteful number, since it uses less digits than its factorization.

2231113223120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583052 (or 1583046 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2231113223120 its reverse (213223111322), we get a palindrome (2444336334442).

The spelling of 2231113223120 in words is "two trillion, two hundred thirty-one billion, one hundred thirteen million, two hundred twenty-three thousand, one hundred twenty".