121202010200 has 192 divisors, whose sum is σ = 294296640000. Its totient is φ = 46383321600.

The previous prime is 121202010151. The next prime is 121202010269. The reversal of 121202010200 is 2010202121.

It is a happy number.

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 47 ways as a sum of consecutive naturals, for example, 242889551 + ... + 242890049.

It is an arithmetic number, because the mean of its divisors is an integer number (1532795000).

Almost surely, 2^121202010200 is an apocalyptic number.

121202010200 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 121202010200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147148320000).

121202010200 is an abundant number, since it is smaller than the sum of its proper divisors (173094629800).

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

121202010200 is a wasteful number, since it uses less digits than its factorization.

121202010200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 121202010200 its reverse (2010202121), we get a palindrome (123212212321).

The spelling of 121202010200 in words is "one hundred twenty-one billion, two hundred two million, ten thousand, two hundred".