121225505522122 has 8 divisors (see below), whose sum is σ = 183638637078372. Its totient is φ = 60012626496000.

The previous prime is 121225505522087. The next prime is 121225505522159. The reversal of 121225505522122 is 221225505522121.

It can be written as a sum of positive squares in 2 ways, for example, as 120110223789361 + 1115281732761 = 10959481^2 + 1056069^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 300063132279 + ... + 300063132682.

Almost surely, 2^{121225505522122} is an apocalyptic number.

121225505522122 is a deficient number, since it is larger than the sum of its proper divisors (62413131556250).

121225505522122 is a wasteful number, since it uses less digits than its factorization.

121225505522122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600126265064.

The product of its (nonzero) digits is 80000, while the sum is 37.

Subtracting 121225505522122 from its reverse (221225505522121), we obtain a palindrome (99999999999999).

The spelling of 121225505522122 in words is "one hundred twenty-one trillion, two hundred twenty-five billion, five hundred five million, five hundred twenty-two thousand, one hundred twenty-two".