121200011010200 has 24 divisors (see below), whose sum is σ = 281790025599180. Its totient is φ = 48480004404000.

The previous prime is 121200011010179. The next prime is 121200011010251. The reversal of 121200011010200 is 2010110002121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 303000027326 + ... + 303000027725.

Almost surely, 2^{121200011010200} is an apocalyptic number.

121200011010200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121200011010200 is an abundant number, since it is smaller than the sum of its proper divisors (160590014588980).

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

121200011010200 is a wasteful number, since it uses less digits than its factorization.

121200011010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606000055067 (or 606000055058 counting only the distinct ones).

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

Adding to 121200011010200 its reverse (2010110002121), we get a palindrome (123210121012321).

The spelling of 121200011010200 in words is "one hundred twenty-one trillion, two hundred billion, eleven million, ten thousand, two hundred".