7921122 has 16 divisors (see below), whose sum is σ = 17282592. Its totient is φ = 2400320.

The previous prime is 7921087. The next prime is 7921129. The reversal of 7921122 is 2211297.

It is a junction number, because it is equal to n+sod(n) for n = 7921092 and 7921101.

It is not an unprimeable number, because it can be changed into a prime (7921129) 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, 59943 + ... + 60074.

It is an arithmetic number, because the mean of its divisors is an integer number (1080162).

Almost surely, 2^7921122 is an apocalyptic number.

7921122 is an abundant number, since it is smaller than the sum of its proper divisors (9361470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7921122 is a wasteful number, since it uses less digits than its factorization.

7921122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120033.

The product of its digits is 504, while the sum is 24.

The square root of 7921122 is about 2814.4487915043. The cubic root of 7921122 is about 199.3405110955.

It can be divided in two parts, 7 and 921122, that added together give a palindrome (921129).

The spelling of 7921122 in words is "seven million, nine hundred twenty-one thousand, one hundred twenty-two".