1323122133221 has 8 divisors (see below), whose sum is σ = 1512146853504. Its totient is φ = 1134099231120.

The previous prime is 1323122133149. The next prime is 1323122133239. The reversal of 1323122133221 is 1223312213231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323122133221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323122135221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1959791 + ... + 2546963.

It is an arithmetic number, because the mean of its divisors is an integer number (189018356688).

Almost surely, 2^{1323122133221} is an apocalyptic number.

It is an amenable number.

1323122133221 is a deficient number, since it is larger than the sum of its proper divisors (189024720283).

1323122133221 is an equidigital number, since it uses as much as digits as its factorization.

1323122133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909091.

The product of its digits is 2592, while the sum is 26.

Adding to 1323122133221 its reverse (1223312213231), we get a palindrome (2546434346452).

The spelling of 1323122133221 in words is "one trillion, three hundred twenty-three billion, one hundred twenty-two million, one hundred thirty-three thousand, two hundred twenty-one".