212020212220 has 12 divisors (see below), whose sum is σ = 445242445704. Its totient is φ = 84808084880.

The previous prime is 212020212211. The next prime is 212020212223. The reversal of 212020212220 is 22212020212.

212020212220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212020212194 and 212020212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212020212223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5300505286 + ... + 5300505325.

It is an arithmetic number, because the mean of its divisors is an integer number (37103537142).

Almost surely, 2^212020212220 is an apocalyptic number.

212020212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020212220 is an abundant number, since it is smaller than the sum of its proper divisors (233222233484).

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

212020212220 is a wasteful number, since it uses less digits than its factorization.

212020212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10601010620 (or 10601010618 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 212020212220 its reverse (22212020212), we get a palindrome (234232232432).

The spelling of 212020212220 in words is "two hundred twelve billion, twenty million, two hundred twelve thousand, two hundred twenty".