1225982194240 has 56 divisors (see below), whose sum is σ = 2919482283960. Its totient is φ = 490374033408.

The previous prime is 1225982194153. The next prime is 1225982194243. The reversal of 1225982194240 is 424912895221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 203408216064 + 1022573978176 = 451008^2 + 1011224^2 .

It is not an unprimeable number, because it can be changed into a prime (1225982194243) by changing a digit.

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, 10749354 + ... + 10862806.

Almost surely, 2^{1225982194240} is an apocalyptic number.

1225982194240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225982194240 is an abundant number, since it is smaller than the sum of its proper divisors (1693500089720).

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

1225982194240 is a wasteful number, since it uses less digits than its factorization.

1225982194240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147239 (or 147229 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 1225982194240 in words is "one trillion, two hundred twenty-five billion, nine hundred eighty-two million, one hundred ninety-four thousand, two hundred forty".