121201022100212 has 24 divisors (see below), whose sum is σ = 216826036600320. Its totient is φ = 59261481189440.

The previous prime is 121201022100203. The next prime is 121201022100241. The reversal of 121201022100212 is 212001220102121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1344362393 + ... + 1344452544.

It is an arithmetic number, because the mean of its divisors is an integer number (9034418191680).

Almost surely, 2^{121201022100212} is an apocalyptic number.

It is an amenable number.

121201022100212 is a deficient number, since it is larger than the sum of its proper divisors (95625014500108).

121201022100212 is a wasteful number, since it uses less digits than its factorization.

121201022100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688815191 (or 2688815189 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121201022100212 its reverse (212001220102121), we get a palindrome (333202242202333).

The spelling of 121201022100212 in words is "one hundred twenty-one trillion, two hundred one billion, twenty-two million, one hundred thousand, two hundred twelve".