1216446425422 has 16 divisors (see below), whose sum is σ = 1890738051840. Its totient is φ = 586558502712.

The previous prime is 1216446425413. The next prime is 1216446425461. The reversal of 1216446425422 is 2245246446121.

It is a super-2 number, since 2×1216446425422² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89516788 + ... + 89530375.

It is an arithmetic number, because the mean of its divisors is an integer number (118171128240).

Almost surely, 2^{1216446425422} is an apocalyptic number.

1216446425422 is a deficient number, since it is larger than the sum of its proper divisors (674291626418).

1216446425422 is a wasteful number, since it uses less digits than its factorization.

1216446425422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179047287.

The product of its digits is 737280, while the sum is 43.

The spelling of 1216446425422 in words is "one trillion, two hundred sixteen billion, four hundred forty-six million, four hundred twenty-five thousand, four hundred twenty-two".