121210220300 has 288 divisors, whose sum is σ = 298405192512. Its totient is φ = 42440785920.

The previous prime is 121210220273. The next prime is 121210220311. The reversal of 121210220300 is 3022012121.

It is a happy number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 387252944 + ... + 387253256.

Almost surely, 2^121210220300 is an apocalyptic number.

121210220300 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 121210220300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149202596256).

121210220300 is an abundant number, since it is smaller than the sum of its proper divisors (177194972212).

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

121210220300 is a wasteful number, since it uses less digits than its factorization.

121210220300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 121210220300 its reverse (3022012121), we get a palindrome (124232232421).

The spelling of 121210220300 in words is "one hundred twenty-one billion, two hundred ten million, two hundred twenty thousand, three hundred".