121424111204 has 12 divisors (see below), whose sum is σ = 231809666928. Its totient is φ = 55192777800.

The previous prime is 121424111201. The next prime is 121424111351. The reversal of 121424111204 is 402111424121.

It is a self number, because there is not a number n which added to its sum of digits gives 121424111204.

It is not an unprimeable number, because it can be changed into a prime (121424111201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1379819402 + ... + 1379819489.

It is an arithmetic number, because the mean of its divisors is an integer number (19317472244).

Almost surely, 2^121424111204 is an apocalyptic number.

It is an amenable number.

121424111204 is a deficient number, since it is larger than the sum of its proper divisors (110385555724).

121424111204 is a wasteful number, since it uses less digits than its factorization.

121424111204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759638906 (or 2759638904 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 121424111204 its reverse (402111424121), we get a palindrome (523535535325).

The spelling of 121424111204 in words is "one hundred twenty-one billion, four hundred twenty-four million, one hundred eleven thousand, two hundred four".