10001022221009 has 4 divisors (see below), whose sum is σ = 10001451601716. Its totient is φ = 10000592840304.

The previous prime is 10001022220993. The next prime is 10001022221033. The reversal of 10001022221009 is 90012222010001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5008769328784 + 4992252892225 = 2238028^2 + 2234335^2 .

It is a cyclic number.

It is not a de Polignac number, because 10001022221009 - 2⁴ = 10001022220993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001022221059) 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, 214655414 + ... + 214701999.

It is an arithmetic number, because the mean of its divisors is an integer number (2500362900429).

Almost surely, 2^{10001022221009} is an apocalyptic number.

It is an amenable number.

10001022221009 is a deficient number, since it is larger than the sum of its proper divisors (429380707).

10001022221009 is an equidigital number, since it uses as much as digits as its factorization.

10001022221009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429380706.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 10001022221009 in words is "ten trillion, one billion, twenty-two million, two hundred twenty-one thousand, nine".