212440443210 has 96 divisors (see below), whose sum is σ = 564266476800. Its totient is φ = 55428810624.

The previous prime is 212440443209. The next prime is 212440443217. The reversal of 212440443210 is 12344044212.

212440443210 is a `hidden beast` number, since 2 + 1 + 2 + 4 + 4 + 0 + 443 + 210 = 666.

It is a super-2 number, since 2×212440443210² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212440443217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21030741 + ... + 21040839.

It is an arithmetic number, because the mean of its divisors is an integer number (5877775800).

Almost surely, 2^212440443210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212440443210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282133238400).

212440443210 is an abundant number, since it is smaller than the sum of its proper divisors (351826033590).

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

212440443210 is a wasteful number, since it uses less digits than its factorization.

212440443210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15132 (or 15129 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 212440443210 its reverse (12344044212), we get a palindrome (224784487422).

The spelling of 212440443210 in words is "two hundred twelve billion, four hundred forty million, four hundred forty-three thousand, two hundred ten".