212210333220 has 48 divisors (see below), whose sum is σ = 613356323328. Its totient is φ = 54763956480.

The previous prime is 212210333149. The next prime is 212210333273. The reversal of 212210333220 is 22333012212.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57043929 + ... + 57047648.

It is an arithmetic number, because the mean of its divisors is an integer number (12778256736).

Almost surely, 2^212210333220 is an apocalyptic number.

212210333220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212210333220 is an abundant number, since it is smaller than the sum of its proper divisors (401145990108).

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

212210333220 is a wasteful number, since it uses less digits than its factorization.

212210333220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114091620 (or 114091618 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 212210333220 its reverse (22333012212), we get a palindrome (234543345432).

The spelling of 212210333220 in words is "two hundred twelve billion, two hundred ten million, three hundred thirty-three thousand, two hundred twenty".