212444332230 has 64 divisors (see below), whose sum is σ = 554523496128. Its totient is φ = 51776217600.

The previous prime is 212444332229. The next prime is 212444332237. The reversal of 212444332230 is 32233444212.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212444332237) 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, 2657289 + ... + 2736068.

It is an arithmetic number, because the mean of its divisors is an integer number (8664429627).

Almost surely, 2^212444332230 is an apocalyptic number.

212444332230 is an abundant number, since it is smaller than the sum of its proper divisors (342079163898).

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

212444332230 is a wasteful number, since it uses less digits than its factorization.

212444332230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5393481.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 212444332230 its reverse (32233444212), we get a palindrome (244677776442).

The spelling of 212444332230 in words is "two hundred twelve billion, four hundred forty-four million, three hundred thirty-two thousand, two hundred thirty".