212053212220 has 36 divisors (see below), whose sum is σ = 469982772504. Its totient is φ = 80357004000.

The previous prime is 212053212211. The next prime is 212053212223. The reversal of 212053212220 is 22212350212.

212053212220 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 = 212053212191 and 212053212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212053212223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14677906 + ... + 14692345.

It is an arithmetic number, because the mean of its divisors is an integer number (13055077014).

Almost surely, 2^212053212220 is an apocalyptic number.

212053212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212053212220 is an abundant number, since it is smaller than the sum of its proper divisors (257929560284).

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

212053212220 is a wasteful number, since it uses less digits than its factorization.

212053212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29370298 (or 29370277 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 212053212220 its reverse (22212350212), we get a palindrome (234265562432).

The spelling of 212053212220 in words is "two hundred twelve billion, fifty-three million, two hundred twelve thousand, two hundred twenty".