12121010300 has 72 divisors (see below), whose sum is σ = 30240397824. Its totient is φ = 4130850240.

The previous prime is 12121010299. The next prime is 12121010311. The reversal of 12121010300 is 301012121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65057 + ... + 168743.

Almost surely, 2^12121010300 is an apocalyptic number.

12121010300 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 12121010300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15120198912).

12121010300 is an abundant number, since it is smaller than the sum of its proper divisors (18119387524).

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

12121010300 is a wasteful number, since it uses less digits than its factorization.

12121010300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103875 (or 103868 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12121010300 its reverse (301012121), we get a palindrome (12422022421).

The spelling of 12121010300 in words is "twelve billion, one hundred twenty-one million, ten thousand, three hundred".