121221201201200 has 30 divisors (see below), whose sum is σ = 291233935886844. Its totient is φ = 48488480480320.

The previous prime is 121221201201161. The next prime is 121221201201229. The reversal of 121221201201200 is 2102102122121.

It is a super-3 number, since 3×121221201201200³ (a number of 43 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151526501102 + ... + 151526501901.

Almost surely, 2^{121221201201200} is an apocalyptic number.

121221201201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121221201201200 is an abundant number, since it is smaller than the sum of its proper divisors (170012734685644).

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

121221201201200 is a wasteful number, since it uses less digits than its factorization.

121221201201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303053003021 (or 303053003010 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121221201201200 its reverse (2102102122121), we get a palindrome (123323303323321).

The spelling of 121221201201200 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two hundred one million, two hundred one thousand, two hundred".