12280721236996 has 9 divisors (see below), whose sum is σ = 21491274430101. Its totient is φ = 6140357114112.

The previous prime is 12280721236967. The next prime is 12280721237033. The reversal of 12280721236996 is 69963212708221.

The square root of 12280721236996 is 3504386.

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., 11502204420100 + 778516816896 = 3391490^2 + 882336^2 .

It is a super-2 number, since 2×12280721236996² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12280721236996.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 6132676 + ... + 7884868.

Almost surely, 2^{12280721236996} is an apocalyptic number.

12280721236996 is the 3504386-th square number.

It is an amenable number.

12280721236996 is a deficient number, since it is larger than the sum of its proper divisors (9210553193105).

12280721236996 is an frugal number, since it uses more digits than its factorization.

12280721236996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3504390 (or 1752195 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 12280721236996 in words is "twelve trillion, two hundred eighty billion, seven hundred twenty-one million, two hundred thirty-six thousand, nine hundred ninety-six".