1225177120272 has 40 divisors (see below), whose sum is σ = 3617189594176. Its totient is φ = 350050605696.

The previous prime is 1225177120207. The next prime is 1225177120283. The reversal of 1225177120272 is 2720217715221.

It is a self number, because there is not a number n which added to its sum of digits gives 1225177120272.

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 7 ways as a sum of consecutive naturals, for example, 1823179903 + ... + 1823180574.

Almost surely, 2^{1225177120272} is an apocalyptic number.

1225177120272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1225177120272 is an abundant number, since it is smaller than the sum of its proper divisors (2392012473904).

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

1225177120272 is a wasteful number, since it uses less digits than its factorization.

1225177120272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3646360495 (or 3646360489 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 39.

The spelling of 1225177120272 in words is "one trillion, two hundred twenty-five billion, one hundred seventy-seven million, one hundred twenty thousand, two hundred seventy-two".