121021230300 has 144 divisors (see below), whose sum is σ = 372418163712. Its totient is φ = 30237465600.

The previous prime is 121021230299. The next prime is 121021230313. The reversal of 121021230300 is 3032120121.

It is a super-2 number, since 2×121021230300² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121021230300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1084095 + ... + 1190505.

It is an arithmetic number, because the mean of its divisors is an integer number (2586237248).

Almost surely, 2^121021230300 is an apocalyptic number.

121021230300 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 121021230300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186209081856).

121021230300 is an abundant number, since it is smaller than the sum of its proper divisors (251396933412).

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

121021230300 is a wasteful number, since it uses less digits than its factorization.

121021230300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106668 (or 106661 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121021230300 its reverse (3032120121), we get a palindrome (124053350421).

The spelling of 121021230300 in words is "one hundred twenty-one billion, twenty-one million, two hundred thirty thousand, three hundred".