121012200112 has 20 divisors (see below), whose sum is σ = 234496241280. Its totient is φ = 60497041088.

The previous prime is 121012200107. The next prime is 121012200187. The reversal of 121012200112 is 211002210121.

It is a super-3 number, since 3×121012200112³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121012200092 and 121012200101.

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, 455323 + ... + 670330.

It is an arithmetic number, because the mean of its divisors is an integer number (11724812064).

Almost surely, 2^121012200112 is an apocalyptic number.

It is an amenable number.

121012200112 is a deficient number, since it is larger than the sum of its proper divisors (113484041168).

121012200112 is a wasteful number, since it uses less digits than its factorization.

121012200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132380 (or 1132374 counting only the distinct ones).

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

Adding to 121012200112 its reverse (211002210121), we get a palindrome (332014410233).

The spelling of 121012200112 in words is "one hundred twenty-one billion, twelve million, two hundred thousand, one hundred twelve".