2121443428682 has 8 divisors (see below), whose sum is σ = 3207221561856. Its totient is φ = 1052369574732.

The previous prime is 2121443428679. The next prime is 2121443428711. The reversal of 2121443428682 is 2868243441212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4176069488 + ... + 4176069995.

It is an arithmetic number, because the mean of its divisors is an integer number (400902695232).

Almost surely, 2^{2121443428682} is an apocalyptic number.

2121443428682 is a deficient number, since it is larger than the sum of its proper divisors (1085778133174).

2121443428682 is a wasteful number, since it uses less digits than its factorization.

2121443428682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8352139612.

The product of its digits is 1179648, while the sum is 47.

Adding to 2121443428682 its reverse (2868243441212), we get a palindrome (4989686869894).

The spelling of 2121443428682 in words is "two trillion, one hundred twenty-one billion, four hundred forty-three million, four hundred twenty-eight thousand, six hundred eighty-two".