1123220222320 has 240 divisors, whose sum is σ = 3173841861120. Its totient is φ = 367906226688.

The previous prime is 1123220222303. The next prime is 1123220222323. The reversal of 1123220222320 is 232220223211.

It is a junction number, because it is equal to n+sod(n) for n = 1123220222291 and 1123220222300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123220222323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77440189 + ... + 77454691.

It is an arithmetic number, because the mean of its divisors is an integer number (13224341088).

Almost surely, 2^{1123220222320} is an apocalyptic number.

1123220222320 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 1123220222320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1586920930560).

1123220222320 is an abundant number, since it is smaller than the sum of its proper divisors (2050621638800).

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

1123220222320 is a wasteful number, since it uses less digits than its factorization.

1123220222320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15412 (or 15399 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 1123220222320 its reverse (232220223211), we get a palindrome (1355440445531).

The spelling of 1123220222320 in words is "one trillion, one hundred twenty-three billion, two hundred twenty million, two hundred twenty-two thousand, three hundred twenty".