212012212012222 has 16 divisors (see below), whose sum is σ = 320813768862720. Its totient is φ = 105077825366008.

The previous prime is 212012212012199. The next prime is 212012212012247. The reversal of 212012212012222 is 222210212210212.

It is a junction number, because it is equal to n+sod(n) for n = 212012212012193 and 212012212012202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883956838 + ... + 884196649.

It is an arithmetic number, because the mean of its divisors is an integer number (20050860553920).

Almost surely, 2^{212012212012222} is an apocalyptic number.

212012212012222 is a deficient number, since it is larger than the sum of its proper divisors (108801556850498).

212012212012222 is a wasteful number, since it uses less digits than its factorization.

212012212012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768154015.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 212012212012222 its reverse (222210212210212), we get a palindrome (434222424222434).

The spelling of 212012212012222 in words is "two hundred twelve trillion, twelve billion, two hundred twelve million, twelve thousand, two hundred twenty-two".