1215224225121 has 8 divisors (see below), whose sum is σ = 1636341531264. Its totient is φ = 802128201200.

The previous prime is 1215224225093. The next prime is 1215224225197.

It is a happy number.

1215224225121 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 1215224225121 - 2⁶ = 1215224225057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1215224225021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2005320201 + ... + 2005320806.

It is an arithmetic number, because the mean of its divisors is an integer number (204542691408).

Almost surely, 2^{1215224225121} is an apocalyptic number.

It is an amenable number.

1215224225121 is a deficient number, since it is larger than the sum of its proper divisors (421117306143).

1215224225121 is a wasteful number, since it uses less digits than its factorization.

1215224225121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010641111.

The product of its digits is 6400, while the sum is 30.

The spelling of 1215224225121 in words is "one trillion, two hundred fifteen billion, two hundred twenty-four million, two hundred twenty-five thousand, one hundred twenty-one".