121331102212 has 12 divisors (see below), whose sum is σ = 212937825100. Its totient is φ = 60491723616.

The previous prime is 121331102197. The next prime is 121331102231. The reversal of 121331102212 is 212201133121.

It can be written as a sum of positive squares in 2 ways, for example, as 73276324416 + 48054777796 = 270696^2 + 219214^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121331102212.

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, 43455303 + ... + 43458094.

Almost surely, 2^121331102212 is an apocalyptic number.

It is an amenable number.

121331102212 is a deficient number, since it is larger than the sum of its proper divisors (91606722888).

121331102212 is a wasteful number, since it uses less digits than its factorization.

121331102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86913750 (or 86913748 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121331102212 its reverse (212201133121), we get a palindrome (333532235333).

The spelling of 121331102212 in words is "one hundred twenty-one billion, three hundred thirty-one million, one hundred two thousand, two hundred twelve".