212011222112222 has 32 divisors (see below), whose sum is σ = 342830600884800. Its totient is φ = 97751099916288.

The previous prime is 212011222112219. The next prime is 212011222112227. The reversal of 212011222112222 is 222211222110212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011222112227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151371998 + ... + 152766174.

It is an arithmetic number, because the mean of its divisors is an integer number (10713456277650).

Almost surely, 2^{212011222112222} is an apocalyptic number.

212011222112222 is a deficient number, since it is larger than the sum of its proper divisors (130819378772578).

212011222112222 is a wasteful number, since it uses less digits than its factorization.

212011222112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400180.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 212011222112222 its reverse (222211222110212), we get a palindrome (434222444222434).

The spelling of 212011222112222 in words is "two hundred twelve trillion, eleven billion, two hundred twenty-two million, one hundred twelve thousand, two hundred twenty-two".