2121232332130 has 16 divisors (see below), whose sum is σ = 3819249936504. Its totient is φ = 848263657600.

The previous prime is 2121232332101. The next prime is 2121232332139. The reversal of 2121232332130 is 312332321212.

It can be written as a sum of positive squares in 4 ways, for example, as 1872581506929 + 248650825201 = 1368423^2 + 498649^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2121232332095 and 2121232332104.

It is not an unprimeable number, because it can be changed into a prime (2121232332139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28620547 + ... + 28694566.

Almost surely, 2^{2121232332130} is an apocalyptic number.

2121232332130 is a deficient number, since it is larger than the sum of its proper divisors (1698017604374).

2121232332130 is a wasteful number, since it uses less digits than its factorization.

2121232332130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57318821.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2121232332130 its reverse (312332321212), we get a palindrome (2433564653342).

The spelling of 2121232332130 in words is "two trillion, one hundred twenty-one billion, two hundred thirty-two million, three hundred thirty-two thousand, one hundred thirty".