6661122 has 64 divisors (see below), whose sum is σ = 15482880. Its totient is φ = 1894464.

The previous prime is 6661117. The next prime is 6661141. The reversal of 6661122 is 2211666.

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

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6661092 and 6661101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84279 + ... + 84357.

It is an arithmetic number, because the mean of its divisors is an integer number (241920).

Almost surely, 2^6661122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6661122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7741440).

6661122 is an abundant number, since it is smaller than the sum of its proper divisors (8821758).

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

6661122 is a wasteful number, since it uses less digits than its factorization.

6661122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167.

The product of its digits is 864, while the sum is 24.

The square root of 6661122 is about 2580.9149540425. The cubic root of 6661122 is about 188.1550139932.

Adding to 6661122 its reverse (2211666), we get a palindrome (8872788).

The spelling of 6661122 in words is "six million, six hundred sixty-one thousand, one hundred twenty-two".