121121010102200 has 96 divisors (see below), whose sum is σ = 286933548314160. Its totient is φ = 47531984947200.

The previous prime is 121121010102199. The next prime is 121121010102203. The reversal of 121121010102200 is 2201010121121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121010102203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227857127 + ... + 228388073.

Almost surely, 2^{121121010102200} is an apocalyptic number.

121121010102200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121121010102200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143466774157080).

121121010102200 is an abundant number, since it is smaller than the sum of its proper divisors (165812538211960).

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

121121010102200 is a wasteful number, since it uses less digits than its factorization.

121121010102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552537 (or 552528 counting only the distinct ones).

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

Adding to 121121010102200 its reverse (2201010121121), we get a palindrome (123322020223321).

The spelling of 121121010102200 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, ten million, one hundred two thousand, two hundred".