101020221102001 has 4 divisors (see below), whose sum is σ = 104503677002100. Its totient is φ = 97536765201904.

The previous prime is 101020221101993. The next prime is 101020221102089. The reversal of 101020221102001 is 100201122020101.

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 72494751928225 + 28525469173776 = 8514385^2 + 5340924^2 .

It is a cyclic number.

It is not a de Polignac number, because 101020221102001 - 2³ = 101020221101993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101020221202001) 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, 1741727950006 + ... + 1741727950063.

It is an arithmetic number, because the mean of its divisors is an integer number (26125919250525).

Almost surely, 2^{101020221102001} is an apocalyptic number.

It is an amenable number.

101020221102001 is a deficient number, since it is larger than the sum of its proper divisors (3483455900099).

101020221102001 is an equidigital number, since it uses as much as digits as its factorization.

101020221102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483455900098.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101020221102001 its reverse (100201122020101), we get a palindrome (201221343122102).

The spelling of 101020221102001 in words is "one hundred one trillion, twenty billion, two hundred twenty-one million, one hundred two thousand, one".