1224451872422 has 4 divisors (see below), whose sum is σ = 1836677808636. Its totient is φ = 612225936210.

The previous prime is 1224451872409. The next prime is 1224451872431. The reversal of 1224451872422 is 2242781544221.

It is a happy number.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 306112968104 + ... + 306112968107.

It is an arithmetic number, because the mean of its divisors is an integer number (459169452159).

Almost surely, 2^{1224451872422} is an apocalyptic number.

1224451872422 is a deficient number, since it is larger than the sum of its proper divisors (612225936214).

1224451872422 is an equidigital number, since it uses as much as digits as its factorization.

1224451872422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612225936213.

The product of its digits is 573440, while the sum is 44.

The spelling of 1224451872422 in words is "one trillion, two hundred twenty-four billion, four hundred fifty-one million, eight hundred seventy-two thousand, four hundred twenty-two".