121244322225 has 36 divisors (see below), whose sum is σ = 217063230576. Its totient is φ = 59689506240.

The previous prime is 121244322217. The next prime is 121244322247. The reversal of 121244322225 is 522223442121.

It is not a de Polignac number, because 121244322225 - 2³ = 121244322217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121244322192 and 121244322201.

It is an unprimeable number.

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, 4770139 + ... + 4795488.

Almost surely, 2^121244322225 is an apocalyptic number.

121244322225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121244322225 is a deficient number, since it is larger than the sum of its proper divisors (95818908351).

121244322225 is a wasteful number, since it uses less digits than its factorization.

121244322225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9565666 (or 9565648 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

Adding to 121244322225 its reverse (522223442121), we get a palindrome (643467764346).

The spelling of 121244322225 in words is "one hundred twenty-one billion, two hundred forty-four million, three hundred twenty-two thousand, two hundred twenty-five".