1001110120221 has 4 divisors (see below), whose sum is σ = 1334813493632. Its totient is φ = 667406746812.

The previous prime is 1001110120187. The next prime is 1001110120243. The reversal of 1001110120221 is 1220210111001.

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 not a de Polignac number, because 1001110120221 - 2¹³ = 1001110112029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1001110120197 and 1001110120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001110120271) 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, 166851686701 + ... + 166851686706.

It is an arithmetic number, because the mean of its divisors is an integer number (333703373408).

Almost surely, 2^{1001110120221} is an apocalyptic number.

It is an amenable number.

1001110120221 is a deficient number, since it is larger than the sum of its proper divisors (333703373411).

1001110120221 is an equidigital number, since it uses as much as digits as its factorization.

1001110120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333703373410.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1001110120221 its reverse (1220210111001), we get a palindrome (2221320231222).

The spelling of 1001110120221 in words is "one trillion, one billion, one hundred ten million, one hundred twenty thousand, two hundred twenty-one".