1232302022221 has 4 divisors (see below), whose sum is σ = 1244503032444. Its totient is φ = 1220101012000.

The previous prime is 1232302022213. The next prime is 1232302022291. The reversal of 1232302022221 is 1222202032321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1115799266596 + 116502755625 = 1056314^2 + 341325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232302022221 - 2³ = 1232302022213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232302022192 and 1232302022201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232302022291) 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, 6100504960 + ... + 6100505161.

It is an arithmetic number, because the mean of its divisors is an integer number (311125758111).

Almost surely, 2^{1232302022221} is an apocalyptic number.

It is an amenable number.

1232302022221 is a deficient number, since it is larger than the sum of its proper divisors (12201010223).

1232302022221 is a wasteful number, since it uses less digits than its factorization.

1232302022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12201010222.

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

Adding to 1232302022221 its reverse (1222202032321), we get a palindrome (2454504054542).

The spelling of 1232302022221 in words is "one trillion, two hundred thirty-two billion, three hundred two million, twenty-two thousand, two hundred twenty-one".