1224988531264 has 21 divisors (see below), whose sum is σ = 2430854187177. Its totient is φ = 612489838464.

The previous prime is 1224988531243. The next prime is 1224988531303. The reversal of 1224988531264 is 4621358894221.

The square root of 1224988531264 is 1106792.

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., 160955020864 + 1064033510400 = 401192^2 + 1031520^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8785162 + ... + 8923510.

Almost surely, 2^{1224988531264} is an apocalyptic number.

1224988531264 is the 1106792-nd square number.

It is an amenable number.

1224988531264 is a deficient number, since it is larger than the sum of its proper divisors (1205865655913).

1224988531264 is an frugal number, since it uses more digits than its factorization.

1224988531264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276710 (or 138351 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 55.

The spelling of 1224988531264 in words is "one trillion, two hundred twenty-four billion, nine hundred eighty-eight million, five hundred thirty-one thousand, two hundred sixty-four".