121216020024 has 64 divisors (see below), whose sum is σ = 330622611840. Its totient is φ = 36728408960.

The previous prime is 121216020019. The next prime is 121216020049. The reversal of 121216020024 is 420020612121.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3744034 + ... + 3776270.

It is an arithmetic number, because the mean of its divisors is an integer number (5165978310).

Almost surely, 2^121216020024 is an apocalyptic number.

It is an amenable number.

121216020024 is an abundant number, since it is smaller than the sum of its proper divisors (209406591816).

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

121216020024 is a wasteful number, since it uses less digits than its factorization.

121216020024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46500 (or 46496 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 121216020024 its reverse (420020612121), we get a palindrome (541236632145).

The spelling of 121216020024 in words is "one hundred twenty-one billion, two hundred sixteen million, twenty thousand, twenty-four".