12251020 has 24 divisors (see below), whose sum is σ = 26276544. Its totient is φ = 4795776.

The previous prime is 12251011. The next prime is 12251039. The reversal of 12251020 is 2015221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5577 + ... + 7456.

It is an arithmetic number, because the mean of its divisors is an integer number (1094856).

Almost surely, 2^12251020 is an apocalyptic number.

12251020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12251020 is an abundant number, since it is smaller than the sum of its proper divisors (14025524).

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

12251020 is a wasteful number, since it uses less digits than its factorization.

12251020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13089 (or 13087 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 12251020 is about 3500.1457112526. The cubic root of 12251020 is about 230.5282125818.

Adding to 12251020 its reverse (2015221), we get a palindrome (14266241).

The spelling of 12251020 in words is "twelve million, two hundred fifty-one thousand, twenty".