2121023213330 has 16 divisors (see below), whose sum is σ = 4363247753280. Its totient is φ = 727207958832.

The previous prime is 2121023213291. The next prime is 2121023213333. The reversal of 2121023213330 is 333123201212.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2121023213296 and 2121023213305.

It is not an unprimeable number, because it can be changed into a prime (2121023213333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15150165740 + ... + 15150165879.

It is an arithmetic number, because the mean of its divisors is an integer number (272702984580).

Almost surely, 2^{2121023213330} is an apocalyptic number.

2121023213330 is an abundant number, since it is smaller than the sum of its proper divisors (2242224539950).

2121023213330 is a wasteful number, since it uses less digits than its factorization.

2121023213330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30300331633.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2121023213330 its reverse (333123201212), we get a palindrome (2454146414542).

The spelling of 2121023213330 in words is "two trillion, one hundred twenty-one billion, twenty-three million, two hundred thirteen thousand, three hundred thirty".