212200043220 has 120 divisors (see below), whose sum is σ = 726195764448. Its totient is φ = 51442430400.

The previous prime is 212200043161. The next prime is 212200043233. The reversal of 212200043220 is 22340002212.

212200043220 is a `hidden beast` number, since 2 + 12 + 200 + 0 + 432 + 20 = 666.

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 = 212200043193 and 212200043202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5936166 + ... + 5971805.

Almost surely, 2^212200043220 is an apocalyptic number.

212200043220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212200043220 is an abundant number, since it is smaller than the sum of its proper divisors (513995721228).

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

212200043220 is a wasteful number, since it uses less digits than its factorization.

212200043220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11908003 (or 11907992 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 212200043220 its reverse (22340002212), we get a palindrome (234540045432).

The spelling of 212200043220 in words is "two hundred twelve billion, two hundred million, forty-three thousand, two hundred twenty".