121110010200 has 72 divisors (see below), whose sum is σ = 406727790300. Its totient is φ = 32296002240.

The previous prime is 121110010187. The next prime is 121110010243. The reversal of 121110010200 is 2010011121.

It is a happy number.

121110010200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 33639870 + ... + 33643469.

Almost surely, 2^121110010200 is an apocalyptic number.

121110010200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121110010200 is an abundant number, since it is smaller than the sum of its proper divisors (285617780100).

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

121110010200 is a wasteful number, since it uses less digits than its factorization.

121110010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67283361 (or 67283349 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 121110010200 its reverse (2010011121), we get a palindrome (123120021321).

The spelling of 121110010200 in words is "one hundred twenty-one billion, one hundred ten million, ten thousand, two hundred".