2121121200230 has 32 divisors (see below), whose sum is σ = 3826373183424. Its totient is φ = 846593819136.

The previous prime is 2121121200227. The next prime is 2121121200239. The reversal of 2121121200230 is 320021211212.

It is a junction number, because it is equal to n+sod(n) for n = 2121121200199 and 2121121200208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121121200239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8376842 + ... + 8626338.

It is an arithmetic number, because the mean of its divisors is an integer number (119574161982).

Almost surely, 2^{2121121200230} is an apocalyptic number.

2121121200230 is a deficient number, since it is larger than the sum of its proper divisors (1705251983194).

2121121200230 is a wasteful number, since it uses less digits than its factorization.

2121121200230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251360.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2121121200230 its reverse (320021211212), we get a palindrome (2441142411442).

The spelling of 2121121200230 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred thousand, two hundred thirty".