121212024 has 32 divisors (see below), whose sum is σ = 316206720. Its totient is φ = 38647136.

The previous prime is 121212017. The next prime is 121212071. The reversal of 121212024 is 420212121.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 121211994 and 121212012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109242 + ... + 110345.

It is an arithmetic number, because the mean of its divisors is an integer number (9881460).

Almost surely, 2^121212024 is an apocalyptic number.

It is an amenable number.

121212024 is an abundant number, since it is smaller than the sum of its proper divisors (194994696).

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

121212024 is a wasteful number, since it uses less digits than its factorization.

121212024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219619 (or 219615 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 121212024 is about 11009.6332363980. The cubic root of 121212024 is about 494.8974708573.

Adding to 121212024 its reverse (420212121), we get a palindrome (541424145).

The spelling of 121212024 in words is "one hundred twenty-one million, two hundred twelve thousand, twenty-four".