1042101200221 has 4 divisors (see below), whose sum is σ = 1042162564192. Its totient is φ = 1042039836252.

The previous prime is 1042101200209. The next prime is 1042101200317. The reversal of 1042101200221 is 1220021012401.

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 1042101200221 - 2¹⁹ = 1042100675933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042101200195 and 1042101200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042101201221) 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 3 ways as a sum of consecutive naturals, for example, 30656505 + ... + 30690478.

It is an arithmetic number, because the mean of its divisors is an integer number (260540641048).

Almost surely, 2^{1042101200221} is an apocalyptic number.

It is an amenable number.

1042101200221 is a deficient number, since it is larger than the sum of its proper divisors (61363971).

1042101200221 is an equidigital number, since it uses as much as digits as its factorization.

1042101200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61363970.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1042101200221 its reverse (1220021012401), we get a palindrome (2262122212622).

The spelling of 1042101200221 in words is "one trillion, forty-two billion, one hundred one million, two hundred thousand, two hundred twenty-one".