212211121001012 has 12 divisors (see below), whose sum is σ = 424422242002080. Its totient is φ = 90947623286136.

The previous prime is 212211121000933. The next prime is 212211121001017. The reversal of 212211121001012 is 210100121112212.

212211121001012 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212211121001017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3789484303562 + ... + 3789484303617.

It is an arithmetic number, because the mean of its divisors is an integer number (35368520166840).

Almost surely, 2^{212211121001012} is an apocalyptic number.

It is an amenable number.

212211121001012 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.

212211121001012 is a wasteful number, since it uses less digits than its factorization.

212211121001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578968607190 (or 7578968607188 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212211121001012 its reverse (210100121112212), we get a palindrome (422311242113224).

The spelling of 212211121001012 in words is "two hundred twelve trillion, two hundred eleven billion, one hundred twenty-one million, one thousand, twelve".