212322303100 has 72 divisors (see below), whose sum is σ = 470187874800. Its totient is φ = 83202900480.

The previous prime is 212322303013. The next prime is 212322303113. The reversal of 212322303100 is 1303223212.

It is a super-2 number, since 2×212322303100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 990099 + ... + 1185301.

It is an arithmetic number, because the mean of its divisors is an integer number (6530387150).

Almost surely, 2^212322303100 is an apocalyptic number.

212322303100 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 212322303100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235093937400).

212322303100 is an abundant number, since it is smaller than the sum of its proper divisors (257865571700).

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

212322303100 is a wasteful number, since it uses less digits than its factorization.

212322303100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195439 (or 195432 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 212322303100 its reverse (1303223212), we get a palindrome (213625526312).

The spelling of 212322303100 in words is "two hundred twelve billion, three hundred twenty-two million, three hundred three thousand, one hundred".