7221412 has 24 divisors (see below), whose sum is σ = 14126112. Its totient is φ = 3201600.

The previous prime is 7221391. The next prime is 7221439. The reversal of 7221412 is 2141227.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7221412.

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, 198 + ... + 3805.

It is an arithmetic number, because the mean of its divisors is an integer number (588588).

Almost surely, 2^7221412 is an apocalyptic number.

It is an amenable number.

7221412 is a deficient number, since it is larger than the sum of its proper divisors (6904700).

7221412 is a wasteful number, since it uses less digits than its factorization.

7221412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059 (or 4057 counting only the distinct ones).

The product of its digits is 224, while the sum is 19.

The square root of 7221412 is about 2687.2685016574. The cubic root of 7221412 is about 193.2891046930.

Adding to 7221412 its reverse (2141227), we get a palindrome (9362639).

The spelling of 7221412 in words is "seven million, two hundred twenty-one thousand, four hundred twelve".