12273609022272 has 448 divisors, whose sum is σ = 39743523052800. Its totient is φ = 3737508397056.

The previous prime is 12273609022261. The next prime is 12273609022327. The reversal of 12273609022272 is 27222090637221.

12273609022272 is a `hidden beast` number, since 1 + 2 + 273 + 6 + 0 + 90 + 22 + 272 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 176464879 + ... + 176534417.

It is an arithmetic number, because the mean of its divisors is an integer number (88713221100).

Almost surely, 2^{12273609022272} is an apocalyptic number.

12273609022272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12273609022272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19871761526400).

12273609022272 is an abundant number, since it is smaller than the sum of its proper divisors (27469914030528).

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

12273609022272 is an frugal number, since it uses more digits than its factorization.

12273609022272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69682 (or 69654 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

Adding to 12273609022272 its reverse (27222090637221), we get a palindrome (39495699659493).

The spelling of 12273609022272 in words is "twelve trillion, two hundred seventy-three billion, six hundred nine million, twenty-two thousand, two hundred seventy-two".