121331221313322 has 16 divisors (see below), whose sum is σ = 245586086514720. Its totient is φ = 39956466456432.

The previous prime is 121331221313311. The next prime is 121331221313411. The reversal of 121331221313322 is 223313122133121.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 121331221313322.

It is an unprimeable number.

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, 121818494797 + ... + 121818495792.

It is an arithmetic number, because the mean of its divisors is an integer number (15349130407170).

Almost surely, 2^{121331221313322} is an apocalyptic number.

121331221313322 is an abundant number, since it is smaller than the sum of its proper divisors (124254865201398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121331221313322 is a wasteful number, since it uses less digits than its factorization.

121331221313322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243636990677.

The product of its digits is 7776, while the sum is 30.

Adding to 121331221313322 its reverse (223313122133121), we get a palindrome (344644343446443).

The spelling of 121331221313322 in words is "one hundred twenty-one trillion, three hundred thirty-one billion, two hundred twenty-one million, three hundred thirteen thousand, three hundred twenty-two".