121202220200000 has 168 divisors, whose sum is σ = 300647826073224. Its totient is φ = 48476252160000.

The previous prime is 121202220199919. The next prime is 121202220200069. The reversal of 121202220200000 is 2022202121.

121202220200000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 71863733653504 + 49338486546496 = 8477248^2 + 7024136^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2738577872 + ... + 2738622128.

It is an arithmetic number, because the mean of its divisors is an integer number (1789570393293).

Almost surely, 2^{121202220200000} is an apocalyptic number.

121202220200000 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 121202220200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150323913036612).

121202220200000 is an abundant number, since it is smaller than the sum of its proper divisors (179445605873224).

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

121202220200000 is an frugal number, since it uses more digits than its factorization.

121202220200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57987 (or 57957 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 121202220200000 its reverse (2022202121), we get a palindrome (121204242402121).

The spelling of 121202220200000 in words is "one hundred twenty-one trillion, two hundred two billion, two hundred twenty million, two hundred thousand".