12025220 has 24 divisors (see below), whose sum is σ = 25401600. Its totient is φ = 4781792.

The previous prime is 12025183. The next prime is 12025229. The reversal of 12025220 is 2252021.

It is a junction number, because it is equal to n+sod(n) for n = 12025195 and 12025204.

It is not an unprimeable number, because it can be changed into a prime (12025229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1901 + ... + 5259.

It is an arithmetic number, because the mean of its divisors is an integer number (1058400).

Almost surely, 2^12025220 is an apocalyptic number.

12025220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12025220 is an abundant number, since it is smaller than the sum of its proper divisors (13376380).

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

12025220 is a wasteful number, since it uses less digits than its factorization.

12025220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3547 (or 3545 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 12025220 is about 3467.7398979739. The cubic root of 12025220 is about 229.1031234660.

Adding to 12025220 its reverse (2252021), we get a palindrome (14277241).

The spelling of 12025220 in words is "twelve million, twenty-five thousand, two hundred twenty".