1216444893324 has 12 divisors (see below), whose sum is σ = 2838371417784. Its totient is φ = 405481631104.

The previous prime is 1216444893317. The next prime is 1216444893347. The reversal of 1216444893324 is 4233984446121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

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, 50685203877 + ... + 50685203900.

It is an arithmetic number, because the mean of its divisors is an integer number (236530951482).

Almost surely, 2^{1216444893324} is an apocalyptic number.

It is an amenable number.

1216444893324 is an abundant number, since it is smaller than the sum of its proper divisors (1621926524460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1216444893324 is a wasteful number, since it uses less digits than its factorization.

1216444893324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101370407784 (or 101370407782 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 51.

The spelling of 1216444893324 in words is "one trillion, two hundred sixteen billion, four hundred forty-four million, eight hundred ninety-three thousand, three hundred twenty-four".