121101200212 has 6 divisors (see below), whose sum is σ = 211927100378. Its totient is φ = 60550600104.

The previous prime is 121101200203. The next prime is 121101200219. The reversal of 121101200212 is 212002101121.

It can be written as a sum of positive squares in only one way, i.e., 75320606916 + 45780593296 = 274446^2 + 213964^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121101200192 and 121101200201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101200219) by changing a digit.

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 as a sum of consecutive naturals, namely, 15137650023 + ... + 15137650030.

Almost surely, 2^121101200212 is an apocalyptic number.

It is an amenable number.

121101200212 is a deficient number, since it is larger than the sum of its proper divisors (90825900166).

121101200212 is a wasteful number, since it uses less digits than its factorization.

121101200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30275300057 (or 30275300055 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121101200212 its reverse (212002101121), we get a palindrome (333103301333).

Subtracting 121101200212 from its reverse (212002101121), we obtain a palindrome (90900900909).

The spelling of 121101200212 in words is "one hundred twenty-one billion, one hundred one million, two hundred thousand, two hundred twelve".