101001002221 has 8 divisors (see below), whose sum is σ = 116890853120. Its totient is φ = 85476435408.

The previous prime is 101001002203. The next prime is 101001002273. The reversal of 101001002221 is 122200100101.

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

It is not a de Polignac number, because 101001002221 - 2⁹ = 101001001709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101001002198 and 101001002207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101001002281) 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, 91320426 + ... + 91321531.

It is an arithmetic number, because the mean of its divisors is an integer number (14611356640).

Almost surely, 2^101001002221 is an apocalyptic number.

It is an amenable number.

101001002221 is a deficient number, since it is larger than the sum of its proper divisors (15889850899).

101001002221 is an equidigital number, since it uses as much as digits as its factorization.

101001002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182642043.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101001002221 its reverse (122200100101), we get a palindrome (223201102322).

The spelling of 101001002221 in words is "one hundred one billion, one million, two thousand, two hundred twenty-one".