121412544224 has 24 divisors (see below), whose sum is σ = 247273394760. Its totient is φ = 58612951936.

The previous prime is 121412544217. The next prime is 121412544269. The reversal of 121412544224 is 422445214121.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 65415314 + ... + 65417169.

It is an arithmetic number, because the mean of its divisors is an integer number (10303058115).

Almost surely, 2^121412544224 is an apocalyptic number.

It is an amenable number.

121412544224 is an abundant number, since it is smaller than the sum of its proper divisors (125860850536).

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

121412544224 is a wasteful number, since it uses less digits than its factorization.

121412544224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130832522 (or 130832514 counting only the distinct ones).

The product of its digits is 20480, while the sum is 32.

Adding to 121412544224 its reverse (422445214121), we get a palindrome (543857758345).

The spelling of 121412544224 in words is "one hundred twenty-one billion, four hundred twelve million, five hundred forty-four thousand, two hundred twenty-four".