1144032111220 has 72 divisors (see below), whose sum is σ = 2555535273984. Its totient is φ = 430114007232.

The previous prime is 1144032111199. The next prime is 1144032111311. The reversal of 1144032111220 is 221112304411.

It is a junction number, because it is equal to n+sod(n) for n = 1144032111191 and 1144032111200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293109 + ... + 1540771.

It is an arithmetic number, because the mean of its divisors is an integer number (35493545472).

Almost surely, 2^{1144032111220} is an apocalyptic number.

1144032111220 is a gapful number since it is divisible by the number (10) 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 1144032111220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1277767636992).

1144032111220 is an abundant number, since it is smaller than the sum of its proper divisors (1411503162764).

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

1144032111220 is a wasteful number, since it uses less digits than its factorization.

1144032111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247837 (or 1247816 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1144032111220 its reverse (221112304411), we get a palindrome (1365144415631).

The spelling of 1144032111220 in words is "one trillion, one hundred forty-four billion, thirty-two million, one hundred eleven thousand, two hundred twenty".