101001121110221 has 4 divisors (see below), whose sum is σ = 101005616264700. Its totient is φ = 100996625955744.

The previous prime is 101001121110217. The next prime is 101001121110223. The reversal of 101001121110221 is 122011121100101.

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 25753737134596 + 75247383975625 = 5074814^2 + 8674525^2 .

It is a cyclic number.

It is not a de Polignac number, because 101001121110221 - 2² = 101001121110217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101001121110196 and 101001121110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101001121110223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2247543536 + ... + 2247588473.

It is an arithmetic number, because the mean of its divisors is an integer number (25251404066175).

Almost surely, 2^{101001121110221} is an apocalyptic number.

It is an amenable number.

101001121110221 is a deficient number, since it is larger than the sum of its proper divisors (4495154479).

101001121110221 is an equidigital number, since it uses as much as digits as its factorization.

101001121110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4495154478.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 101001121110221 its reverse (122011121100101), we get a palindrome (223012242210322).

The spelling of 101001121110221 in words is "one hundred one trillion, one billion, one hundred twenty-one million, one hundred ten thousand, two hundred twenty-one".