2121003323212 has 48 divisors (see below), whose sum is σ = 3958319584800. Its totient is φ = 992788876800.

The previous prime is 2121003323189. The next prime is 2121003323237. The reversal of 2121003323212 is 2123233001212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1623039 + ... + 2622262.

It is an arithmetic number, because the mean of its divisors is an integer number (82464991350).

Almost surely, 2^{2121003323212} is an apocalyptic number.

It is an amenable number.

2121003323212 is a deficient number, since it is larger than the sum of its proper divisors (1837316261588).

2121003323212 is a wasteful number, since it uses less digits than its factorization.

2121003323212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4245466 (or 4245464 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2121003323212 its reverse (2123233001212), we get a palindrome (4244236324424).

The spelling of 2121003323212 in words is "two trillion, one hundred twenty-one billion, three million, three hundred twenty-three thousand, two hundred twelve".