220344212 has 24 divisors (see below), whose sum is σ = 430443552. Its totient is φ = 97826400.

The previous prime is 220344211. The next prime is 220344217. The reversal of 220344212 is 212443022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220344211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56339 + ... + 60122.

It is an arithmetic number, because the mean of its divisors is an integer number (17935148).

Almost surely, 2^220344212 is an apocalyptic number.

220344212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220344212 is a deficient number, since it is larger than the sum of its proper divisors (210099340).

220344212 is a wasteful number, since it uses less digits than its factorization.

220344212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116519 (or 116517 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 220344212 is about 14843.9958232277. The cubic root of 220344212 is about 603.9957494255.

Adding to 220344212 its reverse (212443022), we get a palindrome (432787234).

The spelling of 220344212 in words is "two hundred twenty million, three hundred forty-four thousand, two hundred twelve".