212200230320 has 160 divisors (see below), whose sum is σ = 563282280960. Its totient is φ = 73773711360.

The previous prime is 212200230259. The next prime is 212200230329. The reversal of 212200230320 is 23032002212.

It is a super-2 number, since 2×212200230320² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212200230329) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1103936 + ... + 1281824.

It is an arithmetic number, because the mean of its divisors is an integer number (3520514256).

Almost surely, 2^212200230320 is an apocalyptic number.

212200230320 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 212200230320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281641140480).

212200230320 is an abundant number, since it is smaller than the sum of its proper divisors (351082050640).

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

212200230320 is a wasteful number, since it uses less digits than its factorization.

212200230320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177983 (or 177977 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 212200230320 its reverse (23032002212), we get a palindrome (235232232532).

The spelling of 212200230320 in words is "two hundred twelve billion, two hundred million, two hundred thirty thousand, three hundred twenty".