20011001222101 has 8 divisors (see below), whose sum is σ = 20354474289600. Its totient is φ = 19667671606560.

The previous prime is 20011001222081. The next prime is 20011001222117. The reversal of 20011001222101 is 10122210011002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20011001222101 - 2¹¹ = 20011001220053 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 (20011001222801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35581585 + ... + 36139606.

It is an arithmetic number, because the mean of its divisors is an integer number (2544309286200).

Almost surely, 2^{20011001222101} is an apocalyptic number.

It is an amenable number.

20011001222101 is a deficient number, since it is larger than the sum of its proper divisors (343473067499).

20011001222101 is an equidigital number, since it uses as much as digits as its factorization.

20011001222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71725979.

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

Adding to 20011001222101 its reverse (10122210011002), we get a palindrome (30133211233103).

The spelling of 20011001222101 in words is "twenty trillion, eleven billion, one million, two hundred twenty-two thousand, one hundred one".