211211120020012 has 12 divisors (see below), whose sum is σ = 422422240040080. Its totient is φ = 90519051437136.

The previous prime is 211211120020007. The next prime is 211211120020063. The reversal of 211211120020012 is 210020021112112.

211211120020012 is an admirable number.

It is a super-2 number, since 2×211211120020012² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3771627143187 + ... + 3771627143242.

Almost surely, 2^{211211120020012} is an apocalyptic number.

It is an amenable number.

211211120020012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

211211120020012 is a wasteful number, since it uses less digits than its factorization.

211211120020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7543254286440 (or 7543254286438 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211211120020012 its reverse (210020021112112), we get a palindrome (421231141132124).

The spelling of 211211120020012 in words is "two hundred eleven trillion, two hundred eleven billion, one hundred twenty million, twenty thousand, twelve".