2121002113230 has 768 divisors, whose sum is σ = 8252500838400. Its totient is φ = 362737336320.

The previous prime is 2121002113193. The next prime is 2121002113259. The reversal of 2121002113230 is 323112001212.

2121002113230 is a `hidden beast` number, since 212 + 10 + 0 + 211 + 3 + 230 = 666.

It is a super-3 number, since 3×2121002113230³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 29062626 + ... + 29135514.

It is an arithmetic number, because the mean of its divisors is an integer number (10745443800).

Almost surely, 2^{2121002113230} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2121002113230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4126250419200).

2121002113230 is an abundant number, since it is smaller than the sum of its proper divisors (6131498725170).

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

2121002113230 is a wasteful number, since it uses less digits than its factorization.

2121002113230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72969 (or 72966 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2121002113230 its reverse (323112001212), we get a palindrome (2444114114442).

The spelling of 2121002113230 in words is "two trillion, one hundred twenty-one billion, two million, one hundred thirteen thousand, two hundred thirty".