121023002133218 has 32 divisors (see below), whose sum is σ = 199405994659200. Its totient is φ = 54831792761856.

The previous prime is 121023002133049. The next prime is 121023002133289. The reversal of 121023002133218 is 812331200320121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16758530 + ... + 22866882.

It is an arithmetic number, because the mean of its divisors is an integer number (6231437333100).

Almost surely, 2^{121023002133218} is an apocalyptic number.

121023002133218 is a deficient number, since it is larger than the sum of its proper divisors (78382992525982).

121023002133218 is a wasteful number, since it uses less digits than its factorization.

121023002133218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131066.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 121023002133218 its reverse (812331200320121), we get a palindrome (933354202453339).

The spelling of 121023002133218 in words is "one hundred twenty-one trillion, twenty-three billion, two million, one hundred thirty-three thousand, two hundred eighteen".