121208055 has 8 divisors (see below), whose sum is σ = 193932912. Its totient is φ = 64644288.

The previous prime is 121208039. The next prime is 121208057. The reversal of 121208055 is 550802121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121208055 - 2⁴ = 121208039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121208057) 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, 4040254 + ... + 4040283.

It is an arithmetic number, because the mean of its divisors is an integer number (24241614).

Almost surely, 2^121208055 is an apocalyptic number.

121208055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121208055 is a deficient number, since it is larger than the sum of its proper divisors (72724857).

121208055 is an equidigital number, since it uses as much as digits as its factorization.

121208055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8080545.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 121208055 is about 11009.4529836863. The cubic root of 121208055 is about 494.8920691118.

The spelling of 121208055 in words is "one hundred twenty-one million, two hundred eight thousand, fifty-five".