121204110424 has 16 divisors (see below), whose sum is σ = 231545589120. Its totient is φ = 59458620000.

The previous prime is 121204110353. The next prime is 121204110431. The reversal of 121204110424 is 424011402121.

It is a junction number, because it is equal to n+sod(n) for n = 121204110395 and 121204110404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142928952 + ... + 142929799.

It is an arithmetic number, because the mean of its divisors is an integer number (14471599320).

Almost surely, 2^121204110424 is an apocalyptic number.

It is an amenable number.

121204110424 is a deficient number, since it is larger than the sum of its proper divisors (110341478696).

121204110424 is a wasteful number, since it uses less digits than its factorization.

121204110424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285858810 (or 285858806 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 121204110424 its reverse (424011402121), we get a palindrome (545215512545).

The spelling of 121204110424 in words is "one hundred twenty-one billion, two hundred four million, one hundred ten thousand, four hundred twenty-four".