1321301223201 has 16 divisors (see below), whose sum is σ = 1801405016064. Its totient is φ = 861078004944.

The previous prime is 1321301223163. The next prime is 1321301223287. The reversal of 1321301223201 is 1023221031231.

It is not a de Polignac number, because 1321301223201 - 2²⁵ = 1321267668769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321301723201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5577111 + ... + 5809196.

It is an arithmetic number, because the mean of its divisors is an integer number (112587813504).

Almost surely, 2^{1321301223201} is an apocalyptic number.

It is an amenable number.

1321301223201 is a deficient number, since it is larger than the sum of its proper divisors (480103792863).

1321301223201 is a wasteful number, since it uses less digits than its factorization.

1321301223201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11387180.

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

Adding to 1321301223201 its reverse (1023221031231), we get a palindrome (2344522254432).

The spelling of 1321301223201 in words is "one trillion, three hundred twenty-one billion, three hundred one million, two hundred twenty-three thousand, two hundred one".