20011100022101 has 8 divisors (see below), whose sum is σ = 20285302609560. Its totient is φ = 19736899540992.

The previous prime is 20011100022029. The next prime is 20011100022131. The reversal of 20011100022101 is 10122000111002.

It can be written as a sum of positive squares in 4 ways, for example, as 762251224900 + 19248848797201 = 873070^2 + 4387351^2 .

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 20011100022101 - 2²² = 20011095827797 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 (20011100022131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34062035 + ... + 34644543.

It is an arithmetic number, because the mean of its divisors is an integer number (2535662826195).

Almost surely, 2^{20011100022101} is an apocalyptic number.

It is an amenable number.

20011100022101 is a deficient number, since it is larger than the sum of its proper divisors (274202587459).

20011100022101 is an equidigital number, since it uses as much as digits as its factorization.

20011100022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053175.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20011100022101 its reverse (10122000111002), we get a palindrome (30133100133103).

The spelling of 20011100022101 in words is "twenty trillion, eleven billion, one hundred million, twenty-two thousand, one hundred one".