212012330220 has 36 divisors (see below), whose sum is σ = 643104068880. Its totient is φ = 56536621344.

The previous prime is 212012330207. The next prime is 212012330239. The reversal of 212012330220 is 22033210212.

212012330220 is a `hidden beast` number, since 212 + 0 + 1 + 233 + 0 + 220 = 666.

212012330220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212012330193 and 212012330202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 588922960 + ... + 588923319.

Almost surely, 2^212012330220 is an apocalyptic number.

212012330220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212012330220 is an abundant number, since it is smaller than the sum of its proper divisors (431091738660).

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

212012330220 is a wasteful number, since it uses less digits than its factorization.

212012330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177846294 (or 1177846289 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212012330220 its reverse (22033210212), we get a palindrome (234045540432).

The spelling of 212012330220 in words is "two hundred twelve billion, twelve million, three hundred thirty thousand, two hundred twenty".