121210120112018 has 8 divisors (see below), whose sum is σ = 207788777334912. Its totient is φ = 51947194333716.

The previous prime is 121210120112017. The next prime is 121210120112131. The reversal of 121210120112018 is 810211021012121.

121210120112018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 121210120111984 and 121210120112002.

It is not an unprimeable number, because it can be changed into a prime (121210120112017) 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, 4328932861130 + ... + 4328932861157.

It is an arithmetic number, because the mean of its divisors is an integer number (25973597166864).

Almost surely, 2^{121210120112018} is an apocalyptic number.

121210120112018 is a deficient number, since it is larger than the sum of its proper divisors (86578657222894).

121210120112018 is an equidigital number, since it uses as much as digits as its factorization.

121210120112018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8657865722296.

The product of its (nonzero) digits is 128, while the sum is 23.

Adding to 121210120112018 its reverse (810211021012121), we get a palindrome (931421141124139).

The spelling of 121210120112018 in words is "one hundred twenty-one trillion, two hundred ten billion, one hundred twenty million, one hundred twelve thousand, eighteen".