1225143549120 has 112 divisors (see below), whose sum is σ = 4023962955360. Its totient is φ = 315439251456.

The previous prime is 1225143549109. The next prime is 1225143549131. The reversal of 1225143549120 is 219453415221.

It is an interprime number because it is at equal distance from previous prime (1225143549109) and next prime (1225143549131).

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 15 ways as a sum of consecutive naturals, for example, 21975457 + ... + 22031136.

Almost surely, 2^{1225143549120} is an apocalyptic number.

1225143549120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225143549120 is an abundant number, since it is smaller than the sum of its proper divisors (2798819406240).

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

1225143549120 is a wasteful number, since it uses less digits than its factorization.

1225143549120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44006642 (or 44006632 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 1225143549120 in words is "one trillion, two hundred twenty-five billion, one hundred forty-three million, five hundred forty-nine thousand, one hundred twenty".