121101110200 has 48 divisors (see below), whose sum is σ = 321782953680. Its totient is φ = 41520380160.

The previous prime is 121101110173. The next prime is 121101110201. The reversal of 121101110200 is 2011101121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101110201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43248997 + ... + 43251796.

It is an arithmetic number, because the mean of its divisors is an integer number (6703811535).

Almost surely, 2^121101110200 is an apocalyptic number.

121101110200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121101110200 is an abundant number, since it is smaller than the sum of its proper divisors (200681843480).

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

121101110200 is a wasteful number, since it uses less digits than its factorization.

121101110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86500816 (or 86500807 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121101110200 its reverse (2011101121), we get a palindrome (123112211321).

The spelling of 121101110200 in words is "one hundred twenty-one billion, one hundred one million, one hundred ten thousand, two hundred".