4122111660 has 24 divisors (see below), whose sum is σ = 11541912816. Its totient is φ = 1099229760.

The previous prime is 4122111613. The next prime is 4122111667. The reversal of 4122111660 is 661112214.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4122111660.

It is not an unprimeable number, because it can be changed into a prime (4122111667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34350871 + ... + 34350990.

It is an arithmetic number, because the mean of its divisors is an integer number (480913034).

Almost surely, 2^4122111660 is an apocalyptic number.

It is an amenable number.

4122111660 is an abundant number, since it is smaller than the sum of its proper divisors (7419801156).

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

4122111660 is a wasteful number, since it uses less digits than its factorization.

4122111660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68701873 (or 68701871 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 4122111660 is about 64203.6732594016. The cubic root of 4122111660 is about 1603.3927563966.

Adding to 4122111660 its reverse (661112214), we get a palindrome (4783223874).

The spelling of 4122111660 in words is "four billion, one hundred twenty-two million, one hundred eleven thousand, six hundred sixty".