2121022203130 has 16 divisors (see below), whose sum is σ = 3817857626280. Its totient is φ = 848404956672.

The previous prime is 2121022203061. The next prime is 2121022203163. The reversal of 2121022203130 is 313022201212.

It can be written as a sum of positive squares in 4 ways, for example, as 2038090298689 + 82931904441 = 1427617^2 + 287979^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2121022203098 and 2121022203107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2885986 + ... + 3545554.

Almost surely, 2^{2121022203130} is an apocalyptic number.

2121022203130 is a deficient number, since it is larger than the sum of its proper divisors (1696835423150).

2121022203130 is a wasteful number, since it uses less digits than its factorization.

2121022203130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981153.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2121022203130 its reverse (313022201212), we get a palindrome (2434044404342).

The spelling of 2121022203130 in words is "two trillion, one hundred twenty-one billion, twenty-two million, two hundred three thousand, one hundred thirty".