121022100212 has 24 divisors (see below), whose sum is σ = 237996640896. Its totient is φ = 53427816288.

The previous prime is 121022100203. The next prime is 121022100217. The reversal of 121022100212 is 212001220121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022100217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50593328 + ... + 50595719.

It is an arithmetic number, because the mean of its divisors is an integer number (9916526704).

Almost surely, 2^121022100212 is an apocalyptic number.

It is an amenable number.

121022100212 is a deficient number, since it is larger than the sum of its proper divisors (116974540684).

121022100212 is a wasteful number, since it uses less digits than its factorization.

121022100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101189087 (or 101189085 counting only the distinct ones).

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

Adding to 121022100212 its reverse (212001220121), we get a palindrome (333023320333).

The spelling of 121022100212 in words is "one hundred twenty-one billion, twenty-two million, one hundred thousand, two hundred twelve".