121404223422 has 24 divisors (see below), whose sum is σ = 265998021120. Its totient is φ = 40013376480.

The previous prime is 121404223387. The next prime is 121404223429. The reversal of 121404223422 is 224322404121.

It is a happy number.

121404223422 is a `hidden beast` number, since 1 + 2 + 1 + 404 + 2 + 234 + 22 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121404223429) 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 11 ways as a sum of consecutive naturals, for example, 37889854 + ... + 37893057.

It is an arithmetic number, because the mean of its divisors is an integer number (11083250880).

Almost surely, 2^121404223422 is an apocalyptic number.

121404223422 is an abundant number, since it is smaller than the sum of its proper divisors (144593797698).

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

121404223422 is a wasteful number, since it uses less digits than its factorization.

121404223422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75783008 (or 75783005 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 121404223422 its reverse (224322404121), we get a palindrome (345726627543).

The spelling of 121404223422 in words is "one hundred twenty-one billion, four hundred four million, two hundred twenty-three thousand, four hundred twenty-two".