2121201030234 has 96 divisors (see below), whose sum is σ = 5275227686400. Its totient is φ = 562114313280.

The previous prime is 2121201030199. The next prime is 2121201030257. The reversal of 2121201030234 is 4320301021212.

It is a self number, because there is not a number n which added to its sum of digits gives 2121201030234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4792654 + ... + 5216505.

It is an arithmetic number, because the mean of its divisors is an integer number (54950288400).

Almost surely, 2^{2121201030234} is an apocalyptic number.

2121201030234 is an abundant number, since it is smaller than the sum of its proper divisors (3154026656166).

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

2121201030234 is a wasteful number, since it uses less digits than its factorization.

2121201030234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10009220 (or 10009207 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2121201030234 its reverse (4320301021212), we get a palindrome (6441502051446).

The spelling of 2121201030234 in words is "two trillion, one hundred twenty-one billion, two hundred one million, thirty thousand, two hundred thirty-four".