211222110220112 has 20 divisors (see below), whose sum is σ = 415951737546036. Its totient is φ = 103879726337280.

The previous prime is 211222110220097. The next prime is 211222110220123. The reversal of 211222110220112 is 211022011222112.

It can be written as a sum of positive squares in 2 ways, for example, as 32166774323776 + 179055335896336 = 5671576^2 + 13381156^2 .

It is a super-2 number, since 2×211222110220112² (a number of 29 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 108208047293 + ... + 108208049244.

Almost surely, 2^{211222110220112} is an apocalyptic number.

It is an amenable number.

211222110220112 is a deficient number, since it is larger than the sum of its proper divisors (204729627325924).

211222110220112 is a wasteful number, since it uses less digits than its factorization.

211222110220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216416096606 (or 216416096600 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211222110220112 its reverse (211022011222112), we get a palindrome (422244121442224).

The spelling of 211222110220112 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred ten million, two hundred twenty thousand, one hundred twelve".