10042043334221 has 4 divisors (see below), whose sum is σ = 10043737627872. Its totient is φ = 10040349040572.

The previous prime is 10042043334217. The next prime is 10042043334263. The reversal of 10042043334221 is 12243334024001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10042043334221 - 2² = 10042043334217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10042043334721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847137935 + ... + 847149788.

It is an arithmetic number, because the mean of its divisors is an integer number (2510934406968).

Almost surely, 2^{10042043334221} is an apocalyptic number.

It is an amenable number.

10042043334221 is a deficient number, since it is larger than the sum of its proper divisors (1694293651).

10042043334221 is an equidigital number, since it uses as much as digits as its factorization.

10042043334221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694293650.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 10042043334221 its reverse (12243334024001), we get a palindrome (22285377358222).

The spelling of 10042043334221 in words is "ten trillion, forty-two billion, forty-three million, three hundred thirty-four thousand, two hundred twenty-one".