1322331121221 has 8 divisors (see below), whose sum is σ = 1923390721824. Its totient is φ = 801412800720.

The previous prime is 1322331121211. The next prime is 1322331121303. The reversal of 1322331121221 is 1221211332231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1322331121221 - 2⁷ = 1322331121093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1322331121191 and 1322331121200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322331121211) 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 7 ways as a sum of consecutive naturals, for example, 20035319986 + ... + 20035320051.

It is an arithmetic number, because the mean of its divisors is an integer number (240423840228).

Almost surely, 2^{1322331121221} is an apocalyptic number.

1322331121221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1322331121221 is a deficient number, since it is larger than the sum of its proper divisors (601059600603).

1322331121221 is a wasteful number, since it uses less digits than its factorization.

1322331121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40070640051.

The product of its digits is 864, while the sum is 24.

Adding to 1322331121221 its reverse (1221211332231), we get a palindrome (2543542453452).

The spelling of 1322331121221 in words is "one trillion, three hundred twenty-two billion, three hundred thirty-one million, one hundred twenty-one thousand, two hundred twenty-one".