7224122 has 4 divisors (see below), whose sum is σ = 10836186. Its totient is φ = 3612060.

The previous prime is 7224121. The next prime is 7224127. The reversal of 7224122 is 2214227.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2214227 = 173 ⋅12799.

It can be written as a sum of positive squares in only one way, i.e., 6911641 + 312481 = 2629^2 + 559^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7224094 and 7224103.

It is not an unprimeable number, because it can be changed into a prime (7224121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1806029 + ... + 1806032.

Almost surely, 2^7224122 is an apocalyptic number.

7224122 is a deficient number, since it is larger than the sum of its proper divisors (3612064).

7224122 is a wasteful number, since it uses less digits than its factorization.

7224122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612063.

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

The square root of 7224122 is about 2687.7726838407. The cubic root of 7224122 is about 193.3132803881.

Adding to 7224122 its reverse (2214227), we get a palindrome (9438349).

The spelling of 7224122 in words is "seven million, two hundred twenty-four thousand, one hundred twenty-two".