121303340212 has 12 divisors (see below), whose sum is σ = 213358414500. Its totient is φ = 60343793216.

The previous prime is 121303340177. The next prime is 121303340243. The reversal of 121303340212 is 212043303121.

It can be written as a sum of positive squares in 2 ways, for example, as 91139987236 + 30163352976 = 301894^2 + 173676^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76968337 + ... + 76969912.

It is an arithmetic number, because the mean of its divisors is an integer number (17779867875).

Almost surely, 2^121303340212 is an apocalyptic number.

It is an amenable number.

121303340212 is a deficient number, since it is larger than the sum of its proper divisors (92055074288).

121303340212 is a wasteful number, since it uses less digits than its factorization.

121303340212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153938450 (or 153938448 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121303340212 its reverse (212043303121), we get a palindrome (333346643333).

The spelling of 121303340212 in words is "one hundred twenty-one billion, three hundred three million, three hundred forty thousand, two hundred twelve".