1225412505440 has 48 divisors (see below), whose sum is σ = 2911771428048. Its totient is φ = 487331667456.

The previous prime is 1225412505439. The next prime is 1225412505481. The reversal of 1225412505440 is 445052145221.

It is a self number, because there is not a number n which added to its sum of digits gives 1225412505440.

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 7 ways as a sum of consecutive naturals, for example, 22107662 + ... + 22163021.

It is an arithmetic number, because the mean of its divisors is an integer number (60661904751).

Almost surely, 2^{1225412505440} is an apocalyptic number.

1225412505440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225412505440 is an abundant number, since it is smaller than the sum of its proper divisors (1686358922608).

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

1225412505440 is a wasteful number, since it uses less digits than its factorization.

1225412505440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44270871 (or 44270863 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

The spelling of 1225412505440 in words is "one trillion, two hundred twenty-five billion, four hundred twelve million, five hundred five thousand, four hundred forty".