121211211000200 has 48 divisors (see below), whose sum is σ = 281847916912500. Its totient is φ = 48479004600320.

The previous prime is 121211211000157. The next prime is 121211211000221. The reversal of 121211211000200 is 2000112112121.

It can be written as a sum of positive squares in 6 ways, for example, as 26310764877604 + 94900446122596 = 5129402^2 + 9741686^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32474525 + ... + 36014124.

Almost surely, 2^{121211211000200} is an apocalyptic number.

121211211000200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121211211000200 is an abundant number, since it is smaller than the sum of its proper divisors (160636705912300).

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

121211211000200 is a wasteful number, since it uses less digits than its factorization.

121211211000200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68497514 (or 68497505 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121211211000200 its reverse (2000112112121), we get a palindrome (123211323112321).

The spelling of 121211211000200 in words is "one hundred twenty-one trillion, two hundred eleven billion, two hundred eleven million, two hundred", and thus it is an aban number.