121211000010200 has 24 divisors (see below), whose sum is σ = 281815575024180. Its totient is φ = 48484400004000.

The previous prime is 121211000010127. The next prime is 121211000010203. The reversal of 121211000010200 is 2010000112121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121211000010203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 303027499826 + ... + 303027500225.

Almost surely, 2^{121211000010200} is an apocalyptic number.

121211000010200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121211000010200 is an abundant number, since it is smaller than the sum of its proper divisors (160604575013980).

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

121211000010200 is a wasteful number, since it uses less digits than its factorization.

121211000010200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606055000067 (or 606055000058 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121211000010200 its reverse (2010000112121), we get a palindrome (123221000122321).

The spelling of 121211000010200 in words is "one hundred twenty-one trillion, two hundred eleven billion, ten thousand, two hundred".