121112200212 has 24 divisors (see below), whose sum is σ = 285338778816. Its totient is φ = 39978784128.

The previous prime is 121112200189. The next prime is 121112200219. The reversal of 121112200212 is 212002211121.

It is a junction number, because it is equal to n+sod(n) for n = 121112200191 and 121112200200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112200219) 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, 48992373 + ... + 48994844.

It is an arithmetic number, because the mean of its divisors is an integer number (11889115784).

Almost surely, 2^121112200212 is an apocalyptic number.

121112200212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121112200212 is an abundant number, since it is smaller than the sum of its proper divisors (164226578604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121112200212 is a wasteful number, since it uses less digits than its factorization.

121112200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97987327 (or 97987325 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121112200212 its reverse (212002211121), we get a palindrome (333114411333).

The spelling of 121112200212 in words is "one hundred twenty-one billion, one hundred twelve million, two hundred thousand, two hundred twelve".