121116411 has 32 divisors (see below), whose sum is σ = 199485440. Its totient is φ = 72122400.

The previous prime is 121116409. The next prime is 121116427. The reversal of 121116411 is 114611121.

121116411 is a `hidden beast` number, since 1 + 21 + 1 + 1 + 641 + 1 = 666.

It is not a de Polignac number, because 121116411 - 2¹ = 121116409 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121116461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5316 + ... + 16446.

It is an arithmetic number, because the mean of its divisors is an integer number (6233920).

Almost surely, 2^121116411 is an apocalyptic number.

121116411 is a deficient number, since it is larger than the sum of its proper divisors (78369029).

121116411 is a wasteful number, since it uses less digits than its factorization.

121116411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11184 (or 11178 counting only the distinct ones).

The product of its digits is 48, while the sum is 18.

The square root of 121116411 is about 11005.2901370205. The cubic root of 121116411 is about 494.7673102854.

Adding to 121116411 its reverse (114611121), we get a palindrome (235727532).

The spelling of 121116411 in words is "one hundred twenty-one million, one hundred sixteen thousand, four hundred eleven".