7212242 has 8 divisors (see below), whose sum is σ = 11191500. Its totient is φ = 3481744.

The previous prime is 7212239. The next prime is 7212253. The reversal of 7212242 is 2422127.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6651241 + 561001 = 2579^2 + 749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62117 + ... + 62232.

Almost surely, 2^7212242 is an apocalyptic number.

7212242 is a deficient number, since it is larger than the sum of its proper divisors (3979258).

7212242 is a wasteful number, since it uses less digits than its factorization.

7212242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124380.

The product of its digits is 448, while the sum is 20.

The square root of 7212242 is about 2685.5617661860. The cubic root of 7212242 is about 193.2072549632.

Adding to 7212242 its reverse (2422127), we get a palindrome (9634369).

The spelling of 7212242 in words is "seven million, two hundred twelve thousand, two hundred forty-two".