1210120200218 has 16 divisors (see below), whose sum is σ = 1827551737800. Its totient is φ = 600937128000.

The previous prime is 1210120200197. The next prime is 1210120200253. The reversal of 1210120200218 is 8120020210121.

It can be written as a sum of positive squares in 4 ways, for example, as 1030129592209 + 179990608009 = 1014953^2 + 424253^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1210120200218.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2745428 + ... + 3155568.

Almost surely, 2^{1210120200218} is an apocalyptic number.

1210120200218 is a deficient number, since it is larger than the sum of its proper divisors (617431537582).

1210120200218 is a wasteful number, since it uses less digits than its factorization.

1210120200218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420193.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 1210120200218 its reverse (8120020210121), we get a palindrome (9330140410339).

The spelling of 1210120200218 in words is "one trillion, two hundred ten billion, one hundred twenty million, two hundred thousand, two hundred eighteen".