121331044422 has 128 divisors (see below), whose sum is σ = 320534323200. Its totient is φ = 33285168000.

The previous prime is 121331044421. The next prime is 121331044427. The reversal of 121331044422 is 224440133121.

121331044422 is a `hidden beast` number, since 1 + 2 + 133 + 104 + 4 + 422 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121331044421) 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 63 ways as a sum of consecutive naturals, for example, 1953547 + ... + 2014697.

It is an arithmetic number, because the mean of its divisors is an integer number (2504174400).

Almost surely, 2^121331044422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121331044422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160267161600).

121331044422 is an abundant number, since it is smaller than the sum of its proper divisors (199203278778).

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

121331044422 is a wasteful number, since it uses less digits than its factorization.

121331044422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61379 (or 61373 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 121331044422 its reverse (224440133121), we get a palindrome (345771177543).

The spelling of 121331044422 in words is "one hundred twenty-one billion, three hundred thirty-one million, forty-four thousand, four hundred twenty-two".