2121302223330 has 32 divisors (see below), whose sum is σ = 5091383335104. Its totient is φ = 565651926336.

The previous prime is 2121302223323. The next prime is 2121302223331. The reversal of 2121302223330 is 333222031212.

It is a self number, because there is not a number n which added to its sum of digits gives 2121302223330.

It is not an unprimeable number, because it can be changed into a prime (2121302223331) 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, 1186449 + ... + 2377028.

It is an arithmetic number, because the mean of its divisors is an integer number (159105729222).

Almost surely, 2^{2121302223330} is an apocalyptic number.

2121302223330 is an abundant number, since it is smaller than the sum of its proper divisors (2970081111774).

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

2121302223330 is a wasteful number, since it uses less digits than its factorization.

2121302223330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583330.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 2121302223330 its reverse (333222031212), we get a palindrome (2454524254542).

The spelling of 2121302223330 in words is "two trillion, one hundred twenty-one billion, three hundred two million, two hundred twenty-three thousand, three hundred thirty".