1212064479844 has 9 divisors (see below), whose sum is σ = 2121116693017. Its totient is φ = 606031138984.

The previous prime is 1212064479841. The next prime is 1212064479853. The reversal of 1212064479844 is 4489744602121.

The square root of 1212064479844 is 1100938.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 425153553444 + 786910926400 = 652038^2 + 887080^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212064479791 and 1212064479800.

It is not an unprimeable number, because it can be changed into a prime (1212064479841) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1926642 + ... + 2477110.

Almost surely, 2^{1212064479844} is an apocalyptic number.

1212064479844 is the 1100938-th square number.

It is an amenable number.

1212064479844 is a deficient number, since it is larger than the sum of its proper divisors (909052213173).

1212064479844 is an frugal number, since it uses more digits than its factorization.

1212064479844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100942 (or 550471 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 1212064479844 in words is "one trillion, two hundred twelve billion, sixty-four million, four hundred seventy-nine thousand, eight hundred forty-four".