211121002101212 has 24 divisors (see below), whose sum is σ = 422249597093856. Its totient is φ = 90478802423808.

The previous prime is 211121002101211. The next prime is 211121002101301. The reversal of 211121002101212 is 212101200121112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121002101211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66208133 + ... + 69323580.

It is an arithmetic number, because the mean of its divisors is an integer number (17593733212244).

Almost surely, 2^{211121002101212} is an apocalyptic number.

It is an amenable number.

211121002101212 is an abundant number, since it is smaller than the sum of its proper divisors (211128594992644).

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

211121002101212 is a wasteful number, since it uses less digits than its factorization.

211121002101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135587357 (or 135587355 counting only the distinct ones).

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

Adding to 211121002101212 its reverse (212101200121112), we get a palindrome (423222202222324).

The spelling of 211121002101212 in words is "two hundred eleven trillion, one hundred twenty-one billion, two million, one hundred one thousand, two hundred twelve".