212232222222 has 64 divisors (see below), whose sum is σ = 461965446720. Its totient is φ = 64728999936.

The previous prime is 212232222193. The next prime is 212232222269. The reversal of 212232222222 is 222222232212.

It is a super-3 number, since 3×212232222222³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a nude number because it is divisible by every one of its digits.

212232222222 is a modest number, since divided by 222222 gives 212232 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 212232222192 and 212232222201.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 4615368 + ... + 4661124.

It is an arithmetic number, because the mean of its divisors is an integer number (7218210105).

Almost surely, 2^212232222222 is an apocalyptic number.

212232222222 is an abundant number, since it is smaller than the sum of its proper divisors (249733224498).

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

212232222222 is a wasteful number, since it uses less digits than its factorization.

212232222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47045.

The product of its digits is 3072, while the sum is 24.

Adding to 212232222222 its reverse (222222232212), we get a palindrome (434454454434).

The spelling of 212232222222 in words is "two hundred twelve billion, two hundred thirty-two million, two hundred twenty-two thousand, two hundred twenty-two".