1121344205215 has 32 divisors (see below), whose sum is σ = 1489887302400. Its totient is φ = 805011469824.

The previous prime is 1121344205209. The next prime is 1121344205231. The reversal of 1121344205215 is 5125024431211.

It is a cyclic number.

It is not a de Polignac number, because 1121344205215 - 2³ = 1121344205207 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 776524 + ... + 1686913.

It is an arithmetic number, because the mean of its divisors is an integer number (46558978200).

Almost surely, 2^{1121344205215} is an apocalyptic number.

1121344205215 is a deficient number, since it is larger than the sum of its proper divisors (368543097185).

1121344205215 is a wasteful number, since it uses less digits than its factorization.

1121344205215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463651.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 1121344205215 its reverse (5125024431211), we get a palindrome (6246368636426).

The spelling of 1121344205215 in words is "one trillion, one hundred twenty-one billion, three hundred forty-four million, two hundred five thousand, two hundred fifteen".