1321002221233 has 8 divisors (see below), whose sum is σ = 1349125303680. Its totient is φ = 1292879832720.

The previous prime is 1321002221219. The next prime is 1321002221267. The reversal of 1321002221233 is 3321222001231.

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-1321002221233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321002221933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5951238 + ... + 6169216.

It is an arithmetic number, because the mean of its divisors is an integer number (168640662960).

Almost surely, 2^{1321002221233} is an apocalyptic number.

It is an amenable number.

1321002221233 is a deficient number, since it is larger than the sum of its proper divisors (28123082447).

1321002221233 is a wasteful number, since it uses less digits than its factorization.

1321002221233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346967.

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

Adding to 1321002221233 its reverse (3321222001231), we get a palindrome (4642224222464).

The spelling of 1321002221233 in words is "one trillion, three hundred twenty-one billion, two million, two hundred twenty-one thousand, two hundred thirty-three".