1323221213001 has 16 divisors (see below), whose sum is σ = 1841068846080. Its totient is φ = 843763253520.

The previous prime is 1323221212987. The next prime is 1323221213059. The reversal of 1323221213001 is 1003121223231.

It is not a de Polignac number, because 1323221213001 - 2¹⁴ = 1323221196617 is a prime.

It is a super-2 number, since 2×1323221213001² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1323221211001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1703340 + ... + 2355378.

It is an arithmetic number, because the mean of its divisors is an integer number (115066802880).

Almost surely, 2^{1323221213001} is an apocalyptic number.

It is an amenable number.

1323221213001 is a deficient number, since it is larger than the sum of its proper divisors (517847633079).

1323221213001 is a wasteful number, since it uses less digits than its factorization.

1323221213001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681476.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1323221213001 its reverse (1003121223231), we get a palindrome (2326342436232).

The spelling of 1323221213001 in words is "one trillion, three hundred twenty-three billion, two hundred twenty-one million, two hundred thirteen thousand, one".