1042134100221 has 8 divisors (see below), whose sum is σ = 1389552983680. Its totient is φ = 694735641792.

The previous prime is 1042134100219. The next prime is 1042134100247. The reversal of 1042134100221 is 1220014312401.

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

It is not a de Polignac number, because 1042134100221 - 2¹ = 1042134100219 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 (1042134100201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4986805 + ... + 5191578.

It is an arithmetic number, because the mean of its divisors is an integer number (173694122960).

Almost surely, 2^{1042134100221} is an apocalyptic number.

It is an amenable number.

1042134100221 is a deficient number, since it is larger than the sum of its proper divisors (347418883459).

1042134100221 is a wasteful number, since it uses less digits than its factorization.

1042134100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10212515.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1042134100221 its reverse (1220014312401), we get a palindrome (2262148412622).

The spelling of 1042134100221 in words is "one trillion, forty-two billion, one hundred thirty-four million, one hundred thousand, two hundred twenty-one".