200121112012 has 48 divisors (see below), whose sum is σ = 359826012000. Its totient is φ = 97328816640.

The previous prime is 200121112003. The next prime is 200121112013. The reversal of 200121112012 is 210211121002.

200121112012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 200121111983 and 200121112001.

It is not an unprimeable number, because it can be changed into a prime (200121112013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117786739 + ... + 117788437.

It is an arithmetic number, because the mean of its divisors is an integer number (7496375250).

Almost surely, 2^200121112012 is an apocalyptic number.

It is an amenable number.

200121112012 is a deficient number, since it is larger than the sum of its proper divisors (159704899988).

200121112012 is a wasteful number, since it uses less digits than its factorization.

200121112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466 (or 3464 counting only the distinct ones).

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

Adding to 200121112012 its reverse (210211121002), we get a palindrome (410332233014).

The spelling of 200121112012 in words is "two hundred billion, one hundred twenty-one million, one hundred twelve thousand, twelve".