121223001200 has 90 divisors (see below), whose sum is σ = 338787418896. Its totient is φ = 41562165120.

The previous prime is 121223001199. The next prime is 121223001227. The reversal of 121223001200 is 2100322121.

It is a happy number.

121223001200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent 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 17 ways as a sum of consecutive naturals, for example, 3072824 + ... + 3112023.

Almost surely, 2^121223001200 is an apocalyptic number.

121223001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121223001200 is an abundant number, since it is smaller than the sum of its proper divisors (217564417696).

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

121223001200 is a wasteful number, since it uses less digits than its factorization.

121223001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6184879 (or 6184861 counting only the distinct ones).

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

Adding to 121223001200 its reverse (2100322121), we get a palindrome (123323323321).

The spelling of 121223001200 in words is "one hundred twenty-one billion, two hundred twenty-three million, one thousand, two hundred".