212170326700 has 72 divisors (see below), whose sum is σ = 486201381120. Its totient is φ = 80142638400.

The previous prime is 212170326689. The next prime is 212170326713. The reversal of 212170326700 is 7623071212.

It is a super-3 number, since 3×212170326700³ (a number of 35 digits) contains 333 as substring.

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 23 ways as a sum of consecutive naturals, for example, 411369 + ... + 770431.

It is an arithmetic number, because the mean of its divisors is an integer number (6752796960).

Almost surely, 2^212170326700 is an apocalyptic number.

212170326700 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 212170326700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243100690560).

212170326700 is an abundant number, since it is smaller than the sum of its proper divisors (274031054420).

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

212170326700 is a wasteful number, since it uses less digits than its factorization.

212170326700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359407 (or 359400 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

Adding to 212170326700 its reverse (7623071212), we get a palindrome (219793397912).

The spelling of 212170326700 in words is "two hundred twelve billion, one hundred seventy million, three hundred twenty-six thousand, seven hundred".