1331212004224 has 64 divisors (see below), whose sum is σ = 2791914930000. Its totient is φ = 630503903232.

The previous prime is 1331212004207. The next prime is 1331212004257. The reversal of 1331212004224 is 4224002121331.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26602972 + ... + 26652964.

Almost surely, 2^{1331212004224} is an apocalyptic number.

It is an amenable number.

1331212004224 is an abundant number, since it is smaller than the sum of its proper divisors (1460702925776).

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

1331212004224 is a wasteful number, since it uses less digits than its factorization.

1331212004224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60975 (or 60963 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1331212004224 its reverse (4224002121331), we get a palindrome (5555214125555).

The spelling of 1331212004224 in words is "one trillion, three hundred thirty-one billion, two hundred twelve million, four thousand, two hundred twenty-four".