1222004032321 has 4 divisors (see below), whose sum is σ = 1222266438532. Its totient is φ = 1221741626112.

The previous prime is 1222004032307. The next prime is 1222004032339. The reversal of 1222004032321 is 1232304002221.

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 712607793921 + 509396238400 = 844161^2 + 713720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222004032321 - 2²¹ = 1222001935169 is a prime.

It is a super-3 number, since 3×1222004032321³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222004032292 and 1222004032301.

It is not an unprimeable number, because it can be changed into a prime (1222004033321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131196120 + ... + 131205433.

It is an arithmetic number, because the mean of its divisors is an integer number (305566609633).

Almost surely, 2^{1222004032321} is an apocalyptic number.

It is an amenable number.

1222004032321 is a deficient number, since it is larger than the sum of its proper divisors (262406211).

1222004032321 is an equidigital number, since it uses as much as digits as its factorization.

1222004032321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262406210.

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

Adding to 1222004032321 its reverse (1232304002221), we get a palindrome (2454308034542).

The spelling of 1222004032321 in words is "one trillion, two hundred twenty-two billion, four million, thirty-two thousand, three hundred twenty-one".