12412220 has 24 divisors (see below), whose sum is σ = 26435808. Its totient is φ = 4894400.

The previous prime is 12412199. The next prime is 12412237. The reversal of 12412220 is 2221421.

It is a junction number, because it is equal to n+sod(n) for n = 12412195 and 12412204.

It is a congruent number.

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, 2951 + ... + 5790.

It is an arithmetic number, because the mean of its divisors is an integer number (1101492).

Almost surely, 2^12412220 is an apocalyptic number.

12412220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12412220 is an abundant number, since it is smaller than the sum of its proper divisors (14023588).

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

12412220 is a wasteful number, since it uses less digits than its factorization.

12412220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8821 (or 8819 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 12412220 is about 3523.0980684619. The cubic root of 12412220 is about 231.5349134959.

Adding to 12412220 its reverse (2221421), we get a palindrome (14633641).

The spelling of 12412220 in words is "twelve million, four hundred twelve thousand, two hundred twenty".