121450216825224 has 144 divisors (see below), whose sum is σ = 396801634647600. Its totient is φ = 34700061922848.

The previous prime is 121450216825163. The next prime is 121450216825229. The reversal of 121450216825224 is 422528612054121.

121450216825224 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 502 + 16 + 82 + 52 + 2 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 121450216825224.

It is not an unprimeable number, because it can be changed into a prime (121450216825229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 637398534 + ... + 637589045.

It is an arithmetic number, because the mean of its divisors is an integer number (2755566907275).

Almost surely, 2^{121450216825224} is an apocalyptic number.

121450216825224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121450216825224 is an abundant number, since it is smaller than the sum of its proper divisors (275351417822376).

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

121450216825224 is a wasteful number, since it uses less digits than its factorization.

121450216825224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274987614 (or 1274987591 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

Adding to 121450216825224 its reverse (422528612054121), we get a palindrome (543978828879345).

The spelling of 121450216825224 in words is "one hundred twenty-one trillion, four hundred fifty billion, two hundred sixteen million, eight hundred twenty-five thousand, two hundred twenty-four".