121220201200 has 60 divisors (see below), whose sum is σ = 332836045840. Its totient is φ = 41561210880.

The previous prime is 121220201197. The next prime is 121220201251. The reversal of 121220201200 is 2102022121.

It is a happy number.

121220201200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21643665 + ... + 21649264.

Almost surely, 2^121220201200 is an apocalyptic number.

121220201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121220201200 is an abundant number, since it is smaller than the sum of its proper divisors (211615844640).

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

121220201200 is a wasteful number, since it uses less digits than its factorization.

121220201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43292954 (or 43292943 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121220201200 its reverse (2102022121), we get a palindrome (123322223321).

The spelling of 121220201200 in words is "one hundred twenty-one billion, two hundred twenty million, two hundred one thousand, two hundred".