2121248930628 has 12 divisors (see below), whose sum is σ = 4949580838160. Its totient is φ = 707082976872.

The previous prime is 2121248930611. The next prime is 2121248930663. The reversal of 2121248930628 is 8260398421212.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88385372098 + ... + 88385372121.

Almost surely, 2^{2121248930628} is an apocalyptic number.

It is an amenable number.

2121248930628 is an abundant number, since it is smaller than the sum of its proper divisors (2828331907532).

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

2121248930628 is a wasteful number, since it uses less digits than its factorization.

2121248930628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176770744226 (or 176770744224 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 2121248930628 in words is "two trillion, one hundred twenty-one billion, two hundred forty-eight million, nine hundred thirty thousand, six hundred twenty-eight".