121221210003200 has 108 divisors (see below), whose sum is σ = 300048623346528. Its totient is φ = 48487322419200.

The previous prime is 121221210003071. The next prime is 121221210003203. The reversal of 121221210003200 is 2300012122121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221210003203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297466784 + ... + 297874016.

Almost surely, 2^{121221210003200} is an apocalyptic number.

121221210003200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121221210003200 is an abundant number, since it is smaller than the sum of its proper divisors (178827413343328).

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

121221210003200 is an equidigital number, since it uses as much as digits as its factorization.

121221210003200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453770 (or 453751 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121221210003200 its reverse (2300012122121), we get a palindrome (123521222125321).

The spelling of 121221210003200 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two hundred ten million, three thousand, two hundred".