212102110120 has 16 divisors (see below), whose sum is σ = 477229747860. Its totient is φ = 84840844032.

The previous prime is 212102110097. The next prime is 212102110133. The reversal of 212102110120 is 21011201212.

It can be written as a sum of positive squares in 2 ways, for example, as 212073144196 + 28965924 = 460514^2 + 5382^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212102110120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2651276337 + ... + 2651276416.

Almost surely, 2^212102110120 is an apocalyptic number.

212102110120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212102110120 is an abundant number, since it is smaller than the sum of its proper divisors (265127637740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212102110120 is a wasteful number, since it uses less digits than its factorization.

212102110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5302552764 (or 5302552760 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212102110120 its reverse (21011201212), we get a palindrome (233113311332).

The spelling of 212102110120 in words is "two hundred twelve billion, one hundred two million, one hundred ten thousand, one hundred twenty".