7121122 has 8 divisors (see below), whose sum is σ = 11146176. Its totient is φ = 3405732.

The previous prime is 7121089. The next prime is 7121137. The reversal of 7121122 is 2211217.

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

It is a junction number, because it is equal to n+sod(n) for n = 7121096 and 7121105.

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, 77358 + ... + 77449.

It is an arithmetic number, because the mean of its divisors is an integer number (1393272).

Almost surely, 2^7121122 is an apocalyptic number.

7121122 is a deficient number, since it is larger than the sum of its proper divisors (4025054).

7121122 is a wasteful number, since it uses less digits than its factorization.

7121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154832.

The product of its digits is 56, while the sum is 16.

The square root of 7121122 is about 2668.5430481819. The cubic root of 7121122 is about 192.3901391465.

Adding to 7121122 its reverse (2211217), we get a palindrome (9332339).

The spelling of 7121122 in words is "seven million, one hundred twenty-one thousand, one hundred twenty-two".