121112200012 has 6 divisors (see below), whose sum is σ = 211946350028. Its totient is φ = 60556100004.

The previous prime is 121112199983. The next prime is 121112200169. The reversal of 121112200012 is 210002211121.

It is a junction number, because it is equal to n+sod(n) for n = 121112199965 and 121112200001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15139024998 + ... + 15139025005.

Almost surely, 2^121112200012 is an apocalyptic number.

It is an amenable number.

121112200012 is a deficient number, since it is larger than the sum of its proper divisors (90834150016).

121112200012 is a wasteful number, since it uses less digits than its factorization.

121112200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30278050007 (or 30278050005 counting only the distinct ones).

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

Adding to 121112200012 its reverse (210002211121), we get a palindrome (331114411133).

The spelling of 121112200012 in words is "one hundred twenty-one billion, one hundred twelve million, two hundred thousand, twelve".