121012200212 has 12 divisors (see below), whose sum is σ = 211890536340. Its totient is φ = 60472046976.

The previous prime is 121012200203. The next prime is 121012200241. The reversal of 121012200212 is 212002210121.

It can be written as a sum of positive squares in 2 ways, for example, as 27250085776 + 93762114436 = 165076^2 + 306206^2 .

It is a congruent number.

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, 8505287 + ... + 8519502.

It is an arithmetic number, because the mean of its divisors is an integer number (17657544695).

Almost surely, 2^121012200212 is an apocalyptic number.

It is an amenable number.

121012200212 is a deficient number, since it is larger than the sum of its proper divisors (90878336128).

121012200212 is a wasteful number, since it uses less digits than its factorization.

121012200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17026570 (or 17026568 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121012200212 its reverse (212002210121), we get a palindrome (333014410333).

Subtracting 121012200212 from its reverse (212002210121), we obtain a palindrome (90990009909).

The spelling of 121012200212 in words is "one hundred twenty-one billion, twelve million, two hundred thousand, two hundred twelve".