7122122 has 16 divisors (see below), whose sum is σ = 12288192. Its totient is φ = 3032640.

The previous prime is 7122121. The next prime is 7122149. The reversal of 7122122 is 2212217.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 7122122.

It is not an unprimeable number, because it can be changed into a prime (7122121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722 + ... + 3842.

It is an arithmetic number, because the mean of its divisors is an integer number (768012).

Almost surely, 2^7122122 is an apocalyptic number.

7122122 is a deficient number, since it is larger than the sum of its proper divisors (5166070).

7122122 is a wasteful number, since it uses less digits than its factorization.

7122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3293.

The product of its digits is 112, while the sum is 17.

The square root of 7122122 is about 2668.7304097642. The cubic root of 7122122 is about 192.3991443348.

Adding to 7122122 its reverse (2212217), we get a palindrome (9334339).

The spelling of 7122122 in words is "seven million, one hundred twenty-two thousand, one hundred twenty-two".