121102100212 has 12 divisors (see below), whose sum is σ = 223082816320. Its totient is φ = 57364152696.

The previous prime is 121102100143. The next prime is 121102100213. The reversal of 121102100212 is 212001201121.

It is a junction number, because it is equal to n+sod(n) for n = 121102100192 and 121102100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121102100213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796724268 + ... + 796724419.

Almost surely, 2^121102100212 is an apocalyptic number.

It is an amenable number.

121102100212 is a deficient number, since it is larger than the sum of its proper divisors (101980716108).

121102100212 is a wasteful number, since it uses less digits than its factorization.

121102100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593448710 (or 1593448708 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121102100212 its reverse (212001201121), we get a palindrome (333103301333).

The spelling of 121102100212 in words is "one hundred twenty-one billion, one hundred two million, one hundred thousand, two hundred twelve".