121200200121012 has 12 divisors (see below), whose sum is σ = 282800466949056. Its totient is φ = 40400066707000.

The previous prime is 121200200120983. The next prime is 121200200121029. The reversal of 121200200121012 is 210121002002121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 121200200120982 and 121200200121000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050008338364 + ... + 5050008338387.

It is an arithmetic number, because the mean of its divisors is an integer number (23566705579088).

Almost surely, 2^{121200200121012} is an apocalyptic number.

121200200121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121200200121012 is an abundant number, since it is smaller than the sum of its proper divisors (161600266828044).

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

121200200121012 is a wasteful number, since it uses less digits than its factorization.

121200200121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100016676758 (or 10100016676756 counting only the distinct ones).

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

Adding to 121200200121012 its reverse (210121002002121), we get a palindrome (331321202123133).

The spelling of 121200200121012 in words is "one hundred twenty-one trillion, two hundred billion, two hundred million, one hundred twenty-one thousand, twelve".