121442616 has 24 divisors (see below), whose sum is σ = 328907280. Its totient is φ = 40480848.

The previous prime is 121442603. The next prime is 121442627. The reversal of 121442616 is 616244121.

121442616 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 42 + 616 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

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 121442616.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 843280 + ... + 843423.

It is an arithmetic number, because the mean of its divisors is an integer number (13704470).

Almost surely, 2^121442616 is an apocalyptic number.

It is an amenable number.

121442616 is an abundant number, since it is smaller than the sum of its proper divisors (207464664).

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

121442616 is a wasteful number, since it uses less digits than its factorization.

121442616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686715 (or 1686708 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 121442616 is about 11020.1005440059. The cubic root of 121442616 is about 495.2111006548.

Adding to 121442616 its reverse (616244121), we get a palindrome (737686737).

The spelling of 121442616 in words is "one hundred twenty-one million, four hundred forty-two thousand, six hundred sixteen".