1224744533272 has 32 divisors (see below), whose sum is σ = 2497051982880. Its totient is φ = 559778676480.

The previous prime is 1224744533249. The next prime is 1224744533273. The reversal of 1224744533272 is 2723354474221.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224744533273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57156229 + ... + 57177652.

It is an arithmetic number, because the mean of its divisors is an integer number (78032874465).

Almost surely, 2^{1224744533272} is an apocalyptic number.

It is an amenable number.

1224744533272 is an abundant number, since it is smaller than the sum of its proper divisors (1272307449608).

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

1224744533272 is a wasteful number, since it uses less digits than its factorization.

1224744533272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114334003 (or 114333999 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 46.

The spelling of 1224744533272 in words is "one trillion, two hundred twenty-four billion, seven hundred forty-four million, five hundred thirty-three thousand, two hundred seventy-two".