121416611 has 4 divisors (see below), whose sum is σ = 121483512. Its totient is φ = 121349712.

The previous prime is 121416571. The next prime is 121416613. The reversal of 121416611 is 116614121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121416611 - 2¹⁰ = 121415587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121416613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30650 + ... + 34383.

It is an arithmetic number, because the mean of its divisors is an integer number (30370878).

Almost surely, 2^121416611 is an apocalyptic number.

121416611 is a deficient number, since it is larger than the sum of its proper divisors (66901).

121416611 is an equidigital number, since it uses as much as digits as its factorization.

121416611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66900.

The product of its digits is 288, while the sum is 23.

The square root of 121416611 is about 11018.9205914191. The cubic root of 121416611 is about 495.1757509442.

The spelling of 121416611 in words is "one hundred twenty-one million, four hundred sixteen thousand, six hundred eleven".