101221110221201 has 4 divisors (see below), whose sum is σ = 101243371301232. Its totient is φ = 101198849141172.

The previous prime is 101221110221197. The next prime is 101221110221227. The reversal of 101221110221201 is 102122011122101.

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 101221110221201 - 2² = 101221110221197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 101221110221201.

It is not an unprimeable number, because it can be changed into a prime (101221110221401) 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, 11130533195 + ... + 11130542288.

It is an arithmetic number, because the mean of its divisors is an integer number (25310842825308).

Almost surely, 2^{101221110221201} is an apocalyptic number.

It is an amenable number.

101221110221201 is a deficient number, since it is larger than the sum of its proper divisors (22261080031).

101221110221201 is an equidigital number, since it uses as much as digits as its factorization.

101221110221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22261080030.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101221110221201 its reverse (102122011122101), we get a palindrome (203343121343302).

The spelling of 101221110221201 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred ten million, two hundred twenty-one thousand, two hundred one".