212012212222 has 8 divisors (see below), whose sum is σ = 318108139272. Its totient is φ = 105976165800.

The previous prime is 212012212211. The next prime is 212012212229. The reversal of 212012212222 is 222212210212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212012212222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012212229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14961304 + ... + 14975467.

It is an arithmetic number, because the mean of its divisors is an integer number (39763517409).

Almost surely, 2^212012212222 is an apocalyptic number.

212012212222 is a deficient number, since it is larger than the sum of its proper divisors (106095927050).

212012212222 is a wasteful number, since it uses less digits than its factorization.

212012212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29940314.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212012212222 its reverse (222212210212), we get a palindrome (434224422434).

The spelling of 212012212222 in words is "two hundred twelve billion, twelve million, two hundred twelve thousand, two hundred twenty-two".