101001000120221 has 4 divisors (see below), whose sum is σ = 101001028818912. Its totient is φ = 101000971421532.

The previous prime is 101001000120211. The next prime is 101001000120227. The reversal of 101001000120221 is 122021000100101.

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 101001000120221 - 2¹⁰ = 101001000119197 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 (101001000120227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8188631 + ... + 16402916.

It is an arithmetic number, because the mean of its divisors is an integer number (25250257204728).

Almost surely, 2^{101001000120221} is an apocalyptic number.

It is an amenable number.

101001000120221 is a deficient number, since it is larger than the sum of its proper divisors (28698691).

101001000120221 is an equidigital number, since it uses as much as digits as its factorization.

101001000120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28698690.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101001000120221 its reverse (122021000100101), we get a palindrome (223022000220322).

The spelling of 101001000120221 in words is "one hundred one trillion, one billion, one hundred twenty thousand, two hundred twenty-one".