7222115 has 8 divisors (see below), whose sum is σ = 9043488. Its totient is φ = 5526400.

The previous prime is 7222099. The next prime is 7222121. The reversal of 7222115 is 5112227.

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

It is not a de Polignac number, because 7222115 - 2⁴ = 7222099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31286 + ... + 31515.

It is an arithmetic number, because the mean of its divisors is an integer number (1130436).

Almost surely, 2^7222115 is an apocalyptic number.

7222115 is a deficient number, since it is larger than the sum of its proper divisors (1821373).

7222115 is a wasteful number, since it uses less digits than its factorization.

7222115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62829.

The product of its digits is 280, while the sum is 20.

The square root of 7222115 is about 2687.3993004390. The cubic root of 7222115 is about 193.2953766812.

It can be divided in two parts, 7222 and 115, that added together give a palindrome (7337).

The spelling of 7222115 in words is "seven million, two hundred twenty-two thousand, one hundred fifteen".