211121112101212 has 12 divisors (see below), whose sum is σ = 369517865997280. Its totient is φ = 105544578959136.

The previous prime is 211121112101183. The next prime is 211121112101257. The reversal of 211121112101212 is 212101211121112.

It is a self number, because there is not a number n which added to its sum of digits gives 211121112101212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3994243137 + ... + 3994295992.

Almost surely, 2^{211121112101212} is an apocalyptic number.

It is an amenable number.

211121112101212 is a deficient number, since it is larger than the sum of its proper divisors (158396753896068).

211121112101212 is a wasteful number, since it uses less digits than its factorization.

211121112101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7988545740 (or 7988545738 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 211121112101212 its reverse (212101211121112), we get a palindrome (423222323222324).

The spelling of 211121112101212 in words is "two hundred eleven trillion, one hundred twenty-one billion, one hundred twelve million, one hundred one thousand, two hundred twelve".