212000212220 has 24 divisors (see below), whose sum is σ = 445457414304. Its totient is φ = 84751138496.

The previous prime is 212000212187. The next prime is 212000212231. The reversal of 212000212220 is 22212000212.

It is a junction number, because it is equal to n+sod(n) for n = 212000212195 and 212000212204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3023624 + ... + 3092943.

It is an arithmetic number, because the mean of its divisors is an integer number (18560725596).

Almost surely, 2^212000212220 is an apocalyptic number.

212000212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212000212220 is an abundant number, since it is smaller than the sum of its proper divisors (233457202084).

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

212000212220 is a wasteful number, since it uses less digits than its factorization.

212000212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6118309 (or 6118307 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 212000212220 its reverse (22212000212), we get a palindrome (234212212432).

The spelling of 212000212220 in words is "two hundred twelve billion, two hundred twelve thousand, two hundred twenty".