211121110222212 has 48 divisors (see below), whose sum is σ = 508786051213440. Its totient is φ = 68100063452928.

The previous prime is 211121110222171. The next prime is 211121110222213. The reversal of 211121110222212 is 212222011121112.

It is not an unprimeable number, because it can be changed into a prime (211121110222213) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2273593512 + ... + 2273686367.

It is an arithmetic number, because the mean of its divisors is an integer number (10599709400280).

Almost surely, 2^{211121110222212} is an apocalyptic number.

It is an amenable number.

211121110222212 is an abundant number, since it is smaller than the sum of its proper divisors (297664940991228).

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

211121110222212 is a wasteful number, since it uses less digits than its factorization.

211121110222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547280012 (or 4547280010 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 211121110222212 its reverse (212222011121112), we get a palindrome (423343121343324).

The spelling of 211121110222212 in words is "two hundred eleven trillion, one hundred twenty-one billion, one hundred ten million, two hundred twenty-two thousand, two hundred twelve".