121223300 has 72 divisors (see below), whose sum is σ = 288960672. Its totient is φ = 43776000.

The previous prime is 121223279. The next prime is 121223351. The reversal of 121223300 is 3322121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212015 + ... + 212585.

Almost surely, 2^121223300 is an apocalyptic number.

121223300 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 121223300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144480336).

121223300 is an abundant number, since it is smaller than the sum of its proper divisors (167737372).

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

121223300 is a wasteful number, since it uses less digits than its factorization.

121223300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 782 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 121223300 is about 11010.1453214751. The cubic root of 121223300 is about 494.9128166694.

Adding to 121223300 its reverse (3322121), we get a palindrome (124545421).

The spelling of 121223300 in words is "one hundred twenty-one million, two hundred twenty-three thousand, three hundred".