2121003213330 has 64 divisors (see below), whose sum is σ = 5358983817600. Its totient is φ = 535766400000.

The previous prime is 2121003213323. The next prime is 2121003213353. The reversal of 2121003213330 is 333123001212.

It is a junction number, because it is equal to n+sod(n) for n = 2121003213297 and 2121003213306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4488330 + ... + 4938330.

It is an arithmetic number, because the mean of its divisors is an integer number (83734122150).

Almost surely, 2^{2121003213330} is an apocalyptic number.

2121003213330 is an abundant number, since it is smaller than the sum of its proper divisors (3237980604270).

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

2121003213330 is a wasteful number, since it uses less digits than its factorization.

2121003213330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458299.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 2121003213330 its reverse (333123001212), we get a palindrome (2454126214542).

The spelling of 2121003213330 in words is "two trillion, one hundred twenty-one billion, three million, two hundred thirteen thousand, three hundred thirty".