212322200020 has 96 divisors (see below), whose sum is σ = 522512831232. Its totient is φ = 70970093568.

The previous prime is 212322200011. The next prime is 212322200021. The reversal of 212322200020 is 20002223212.

It is a junction number, because it is equal to n+sod(n) for n = 212322199967 and 212322200003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212322200021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 793182 + ... + 1026538.

It is an arithmetic number, because the mean of its divisors is an integer number (5442841992).

Almost surely, 2^212322200020 is an apocalyptic number.

212322200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212322200020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261256415616).

212322200020 is an abundant number, since it is smaller than the sum of its proper divisors (310190631212).

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

212322200020 is a wasteful number, since it uses less digits than its factorization.

212322200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233537 (or 233535 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 212322200020 its reverse (20002223212), we get a palindrome (232324423232).

The spelling of 212322200020 in words is "two hundred twelve billion, three hundred twenty-two million, two hundred thousand, twenty".