12501020 has 24 divisors (see below), whose sum is σ = 30002784. Its totient is φ = 4286016.

The previous prime is 12501019. The next prime is 12501043. The reversal of 12501020 is 2010521.

It is a junction number, because it is equal to n+sod(n) for n = 12500992 and 12501010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44507 + ... + 44786.

It is an arithmetic number, because the mean of its divisors is an integer number (1250116).

Almost surely, 2^12501020 is an apocalyptic number.

12501020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12501020 is an abundant number, since it is smaller than the sum of its proper divisors (17501764).

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

12501020 is a wasteful number, since it uses less digits than its factorization.

12501020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89309 (or 89307 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 12501020 is about 3535.6781527735. The cubic root of 12501020 is about 232.0857540698.

Adding to 12501020 its reverse (2010521), we get a palindrome (14511541).

The spelling of 12501020 in words is "twelve million, five hundred one thousand, twenty".