20111000122101 has 8 divisors (see below), whose sum is σ = 30645333519424. Its totient is φ = 11492000069760.

The previous prime is 20111000122067. The next prime is 20111000122127. The reversal of 20111000122101 is 10122100011102.

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

It is not a de Polignac number, because 20111000122101 - 2¹⁵ = 20111000089333 is a prime.

It is a super-2 number, since 2×20111000122101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111000122151) 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, 478833336220 + ... + 478833336261.

It is an arithmetic number, because the mean of its divisors is an integer number (3830666689928).

Almost surely, 2^{20111000122101} is an apocalyptic number.

20111000122101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20111000122101 is a deficient number, since it is larger than the sum of its proper divisors (10534333397323).

20111000122101 is an equidigital number, since it uses as much as digits as its factorization.

20111000122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957666672491.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20111000122101 its reverse (10122100011102), we get a palindrome (30233100133203).

The spelling of 20111000122101 in words is "twenty trillion, one hundred eleven billion, one hundred twenty-two thousand, one hundred one".