212133310020 has 48 divisors (see below), whose sum is σ = 659970299520. Its totient is φ = 56568882528.

The previous prime is 212133310009. The next prime is 212133310027. The reversal of 212133310020 is 20013331212.

212133310020 is a `hidden beast` number, since 212 + 1 + 333 + 100 + 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 = 212133309975 and 212133310002.

It is not an unprimeable number, because it can be changed into a prime (212133310027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196419192 + ... + 196420271.

It is an arithmetic number, because the mean of its divisors is an integer number (13749381240).

Almost surely, 2^212133310020 is an apocalyptic number.

212133310020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212133310020 is an abundant number, since it is smaller than the sum of its proper divisors (447836989500).

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

212133310020 is a wasteful number, since it uses less digits than its factorization.

212133310020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392839481 (or 392839473 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212133310020 its reverse (20013331212), we get a palindrome (232146641232).

The spelling of 212133310020 in words is "two hundred twelve billion, one hundred thirty-three million, three hundred ten thousand, twenty".