1213450445224 has 16 divisors (see below), whose sum is σ = 2277695354400. Its totient is φ = 606065017392.

The previous prime is 1213450445209. The next prime is 1213450445237. The reversal of 1213450445224 is 4225440543121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82517842 + ... + 82532545.

It is an arithmetic number, because the mean of its divisors is an integer number (142355959650).

Almost surely, 2^{1213450445224} is an apocalyptic number.

It is an amenable number.

1213450445224 is a deficient number, since it is larger than the sum of its proper divisors (1064244909176).

1213450445224 is a wasteful number, since it uses less digits than its factorization.

1213450445224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165051312 (or 165051308 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 1213450445224 its reverse (4225440543121), we get a palindrome (5438890988345).

The spelling of 1213450445224 in words is "one trillion, two hundred thirteen billion, four hundred fifty million, four hundred forty-five thousand, two hundred twenty-four".