20102221100101 has 16 divisors (see below), whose sum is σ = 23029104107520. Its totient is φ = 17189163198000.

The previous prime is 20102221100069. The next prime is 20102221100119. The reversal of 20102221100101 is 10100112220102.

It is a cyclic number.

It is not a de Polignac number, because 20102221100101 - 2⁵ = 20102221100069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102221106101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4212976 + ... + 7612726.

It is an arithmetic number, because the mean of its divisors is an integer number (1439319006720).

Almost surely, 2^{20102221100101} is an apocalyptic number.

It is an amenable number.

20102221100101 is a deficient number, since it is larger than the sum of its proper divisors (2926883007419).

20102221100101 is a wasteful number, since it uses less digits than its factorization.

20102221100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401784.

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

Adding to 20102221100101 its reverse (10100112220102), we get a palindrome (30202333320203).

The spelling of 20102221100101 in words is "twenty trillion, one hundred two billion, two hundred twenty-one million, one hundred thousand, one hundred one".