121210200330 has 128 divisors (see below), whose sum is σ = 305272074240. Its totient is φ = 30742863360.

The previous prime is 121210200317. The next prime is 121210200337. The reversal of 121210200330 is 33002012121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (121210200337) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 159277150 + ... + 159277910.

It is an arithmetic number, because the mean of its divisors is an integer number (2384938080).

Almost surely, 2^121210200330 is an apocalyptic number.

121210200330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121210200330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152636037120).

121210200330 is an abundant number, since it is smaller than the sum of its proper divisors (184061873910).

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

121210200330 is a wasteful number, since it uses less digits than its factorization.

121210200330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121210200330 its reverse (33002012121), we get a palindrome (154212212451).

The spelling of 121210200330 in words is "one hundred twenty-one billion, two hundred ten million, two hundred thousand, three hundred thirty".