1012250056521 has 32 divisors (see below), whose sum is σ = 1512755596800. Its totient is φ = 596869332480.

The previous prime is 1012250056513. The next prime is 1012250056553. The reversal of 1012250056521 is 1256500522101.

It is not a de Polignac number, because 1012250056521 - 2³ = 1012250056513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012250056511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2491051 + ... + 2868768.

It is an arithmetic number, because the mean of its divisors is an integer number (47273612400).

Almost surely, 2^{1012250056521} is an apocalyptic number.

1012250056521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1012250056521 is a deficient number, since it is larger than the sum of its proper divisors (500505540279).

1012250056521 is a wasteful number, since it uses less digits than its factorization.

1012250056521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5359989.

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 1012250056521 its reverse (1256500522101), we get a palindrome (2268750578622).

The spelling of 1012250056521 in words is "one trillion, twelve billion, two hundred fifty million, fifty-six thousand, five hundred twenty-one".