7220012 has 6 divisors (see below), whose sum is σ = 12635028. Its totient is φ = 3610004.

The previous prime is 7219997. The next prime is 7220027. The reversal of 7220012 is 2100227.

It is an interprime number because it is at equal distance from previous prime (7219997) and next prime (7220027).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902498 + ... + 902505.

It is an arithmetic number, because the mean of its divisors is an integer number (2105838).

Almost surely, 2^7220012 is an apocalyptic number.

It is an amenable number.

7220012 is a deficient number, since it is larger than the sum of its proper divisors (5415016).

7220012 is a wasteful number, since it uses less digits than its factorization.

7220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805007 (or 1805005 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 7220012 is about 2687.0080014767. The cubic root of 7220012 is about 193.2766130346.

Adding to 7220012 its reverse (2100227), we get a palindrome (9320239).

The spelling of 7220012 in words is "seven million, two hundred twenty thousand, twelve".