12234877669921 has 9 divisors (see below), whose sum is σ = 12304240455283. Its totient is φ = 12165903782680.

The previous prime is 12234877669907. The next prime is 12234877669933. The reversal of 12234877669921 is 12996677843221.

The square root of 12234877669921 is 3497839.

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., 3040276962321 + 9194600707600 = 1743639^2 + 3032260^2 .

It is not a de Polignac number, because 12234877669921 - 2⁷ = 12234877669793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12234877669121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 626103411 + ... + 626122951.

Almost surely, 2^{12234877669921} is an apocalyptic number.

12234877669921 is the 3497839-th square number.

12234877669921 is the 1748920-th centered octagonal number.

It is an amenable number.

12234877669921 is a deficient number, since it is larger than the sum of its proper divisors (69362785362).

12234877669921 is an frugal number, since it uses more digits than its factorization.

12234877669921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39440 (or 19720 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 67.

The spelling of 12234877669921 in words is "twelve trillion, two hundred thirty-four billion, eight hundred seventy-seven million, six hundred sixty-nine thousand, nine hundred twenty-one".