121300212100 has 18 divisors (see below), whose sum is σ = 263221460474. Its totient is φ = 48520084800.

The previous prime is 121300212079. The next prime is 121300212101. The reversal of 121300212100 is 1212003121.

121300212100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 986965056 + 120313247044 = 31416^2 + 346862^2 .

It is not an unprimeable number, because it can be changed into a prime (121300212101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 606500961 + ... + 606501160.

Almost surely, 2^121300212100 is an apocalyptic number.

121300212100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121300212100 is an abundant number, since it is smaller than the sum of its proper divisors (141921248374).

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

121300212100 is a wasteful number, since it uses less digits than its factorization.

121300212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213002135 (or 1213002128 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 121300212100 its reverse (1212003121), we get a palindrome (122512215221).

The spelling of 121300212100 in words is "one hundred twenty-one billion, three hundred million, two hundred twelve thousand, one hundred".