1232120330221 has 4 divisors (see below), whose sum is σ = 1344131269344. Its totient is φ = 1120109391100.

The previous prime is 1232120330219. The next prime is 1232120330323. The reversal of 1232120330221 is 1220330212321.

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 a cyclic number.

It is not a de Polignac number, because 1232120330221 - 2¹ = 1232120330219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232120330192 and 1232120330201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232120330201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56005469545 + ... + 56005469566.

It is an arithmetic number, because the mean of its divisors is an integer number (336032817336).

Almost surely, 2^{1232120330221} is an apocalyptic number.

1232120330221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1232120330221 is a deficient number, since it is larger than the sum of its proper divisors (112010939123).

1232120330221 is a wasteful number, since it uses less digits than its factorization.

1232120330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112010939122.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1232120330221 its reverse (1220330212321), we get a palindrome (2452450542542).

The spelling of 1232120330221 in words is "one trillion, two hundred thirty-two billion, one hundred twenty million, three hundred thirty thousand, two hundred twenty-one".