212110202112220 has 24 divisors (see below), whose sum is σ = 445486463874144. Its totient is φ = 84833597142336.

The previous prime is 212110202112217. The next prime is 212110202112253. The reversal of 212110202112220 is 22211202011212.

It is a congruent number.

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, 655065504 + ... + 655389223.

It is an arithmetic number, because the mean of its divisors is an integer number (18561935994756).

Almost surely, 2^{212110202112220} is an apocalyptic number.

212110202112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212110202112220 is an abundant number, since it is smaller than the sum of its proper divisors (233376261761924).

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

212110202112220 is a wasteful number, since it uses less digits than its factorization.

212110202112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310462829 (or 1310462827 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212110202112220 its reverse (22211202011212), we get a palindrome (234321404123432).

The spelling of 212110202112220 in words is "two hundred twelve trillion, one hundred ten billion, two hundred two million, one hundred twelve thousand, two hundred twenty".