121100122012 has 12 divisors (see below), whose sum is σ = 212690288440. Its totient is φ = 60331468176.

The previous prime is 121100121983. The next prime is 121100122037. The reversal of 121100122012 is 210221001121.

It is a junction number, because it is equal to n+sod(n) for n = 121100121983 and 121100122001.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 54646962 + ... + 54649177.

Almost surely, 2^121100122012 is an apocalyptic number.

It is an amenable number.

121100122012 is a deficient number, since it is larger than the sum of its proper divisors (91590166428).

121100122012 is a wasteful number, since it uses less digits than its factorization.

121100122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109296420 (or 109296418 counting only the distinct ones).

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

Adding to 121100122012 its reverse (210221001121), we get a palindrome (331321123133).

The spelling of 121100122012 in words is "one hundred twenty-one billion, one hundred million, one hundred twenty-two thousand, twelve".