212010202120 has 32 divisors (see below), whose sum is σ = 505083130200. Its totient is φ = 79815605248.

The previous prime is 212010202049. The next prime is 212010202153. The reversal of 212010202120 is 21202010212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 196867915204 + 15142286916 = 443698^2 + 123054^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212010202120.

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 7 ways as a sum of consecutive naturals, for example, 155889175 + ... + 155890534.

Almost surely, 2^212010202120 is an apocalyptic number.

212010202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212010202120 is an abundant number, since it is smaller than the sum of its proper divisors (293072928080).

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

212010202120 is a wasteful number, since it uses less digits than its factorization.

212010202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311779737 (or 311779733 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 212010202120 its reverse (21202010212), we get a palindrome (233212212332).

The spelling of 212010202120 in words is "two hundred twelve billion, ten million, two hundred two thousand, one hundred twenty".