1322203332221 has 4 divisors (see below), whose sum is σ = 1322219173344. Its totient is φ = 1322187491100.

The previous prime is 1322203332211. The next prime is 1322203332277. The reversal of 1322203332221 is 1222333022231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322203332221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322203332211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7794695 + ... + 7962516.

It is an arithmetic number, because the mean of its divisors is an integer number (330554793336).

Almost surely, 2^{1322203332221} is an apocalyptic number.

It is an amenable number.

1322203332221 is a deficient number, since it is larger than the sum of its proper divisors (15841123).

1322203332221 is an equidigital number, since it uses as much as digits as its factorization.

1322203332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15841122.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 1322203332221 its reverse (1222333022231), we get a palindrome (2544536354452).

The spelling of 1322203332221 in words is "one trillion, three hundred twenty-two billion, two hundred three million, three hundred thirty-two thousand, two hundred twenty-one".