121422401424 has 30 divisors (see below), whose sum is σ = 339814082166. Its totient is φ = 40474133760.

The previous prime is 121422401423. The next prime is 121422401459. The reversal of 121422401424 is 424104224121.

121422401424 is a `hidden beast` number, since 1 + 2 + 14 + 224 + 0 + 1 + 424 = 666.

It can be written as a sum of positive squares in only one way, i.e., 119970791424 + 1451610000 = 346368^2 + 38100^2 .

It is not an unprimeable number, because it can be changed into a prime (121422401423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 421605417 + ... + 421605704.

Almost surely, 2^121422401424 is an apocalyptic number.

It is an amenable number.

121422401424 is an abundant number, since it is smaller than the sum of its proper divisors (218391680742).

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

121422401424 is a wasteful number, since it uses less digits than its factorization.

121422401424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843211135 (or 843211126 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 121422401424 its reverse (424104224121), we get a palindrome (545526625545).

The spelling of 121422401424 in words is "one hundred twenty-one billion, four hundred twenty-two million, four hundred one thousand, four hundred twenty-four".