121501224325 has 24 divisors (see below), whose sum is σ = 162399246408. Its totient is φ = 89641927680.

The previous prime is 121501224283. The next prime is 121501224353. The reversal of 121501224325 is 523422105121.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 105260015844 + 16241208481 = 324438^2 + 127441^2 .

It is a de Polignac number, because none of the positive numbers 2^k-121501224325 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121501224293 and 121501224302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186129 + ... + 526921.

It is an arithmetic number, because the mean of its divisors is an integer number (6766635267).

Almost surely, 2^121501224325 is an apocalyptic number.

It is an amenable number.

121501224325 is a deficient number, since it is larger than the sum of its proper divisors (40898022083).

121501224325 is a wasteful number, since it uses less digits than its factorization.

121501224325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341913 (or 341908 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 121501224325 its reverse (523422105121), we get a palindrome (644923329446).

The spelling of 121501224325 in words is "one hundred twenty-one billion, five hundred one million, two hundred twenty-four thousand, three hundred twenty-five".