1232221123320 has 128 divisors (see below), whose sum is σ = 4053195210240. Its totient is φ = 297203863040.

The previous prime is 1232221123291. The next prime is 1232221123339. The reversal of 1232221123320 is 233211222321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2109252 + ... + 2629331.

It is an arithmetic number, because the mean of its divisors is an integer number (31665587580).

Almost surely, 2^{1232221123320} is an apocalyptic number.

1232221123320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232221123320 is an abundant number, since it is smaller than the sum of its proper divisors (2820974086920).

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

1232221123320 is a wasteful number, since it uses less digits than its factorization.

1232221123320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738805 (or 4738801 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1232221123320 its reverse (233211222321), we get a palindrome (1465432345641).

Subtracting from 1232221123320 its reverse (233211222321), we obtain a palindrome (999009900999).

The spelling of 1232221123320 in words is "one trillion, two hundred thirty-two billion, two hundred twenty-one million, one hundred twenty-three thousand, three hundred twenty".