211122220122212 has 72 divisors (see below), whose sum is σ = 455069578305888. Its totient is φ = 85157865811200.

The previous prime is 211122220122197. The next prime is 211122220122227. The reversal of 211122220122212 is 212221022221112.

It is an interprime number because it is at equal distance from previous prime (211122220122197) and next prime (211122220122227).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 821579387 + ... + 821836317.

It is an arithmetic number, because the mean of its divisors is an integer number (6320410809804).

Almost surely, 2^{211122220122212} is an apocalyptic number.

It is an amenable number.

211122220122212 is an abundant number, since it is smaller than the sum of its proper divisors (243947358183676).

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

211122220122212 is a wasteful number, since it uses less digits than its factorization.

211122220122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503577 (or 503568 counting only the distinct ones).

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

Adding to 211122220122212 its reverse (212221022221112), we get a palindrome (423343242343324).

The spelling of 211122220122212 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred twenty million, one hundred twenty-two thousand, two hundred twelve".