20101101200121 has 8 divisors (see below), whose sum is σ = 26803104463744. Its totient is φ = 13399916034960.

The previous prime is 20101101200111. The next prime is 20101101200143. The reversal of 20101101200121 is 12100210110102.

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

It is not a de Polignac number, because 20101101200121 - 2¹⁵ = 20101101167353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20101101200097 and 20101101200106.

It is not an unprimeable number, because it can be changed into a prime (20101101200111) 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, 204467281 + ... + 204565566.

It is an arithmetic number, because the mean of its divisors is an integer number (3350388057968).

Almost surely, 2^{20101101200121} is an apocalyptic number.

It is an amenable number.

20101101200121 is a deficient number, since it is larger than the sum of its proper divisors (6702003263623).

20101101200121 is a wasteful number, since it uses less digits than its factorization.

20101101200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409049231.

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

Adding to 20101101200121 its reverse (12100210110102), we get a palindrome (32201311310223).

The spelling of 20101101200121 in words is "twenty trillion, one hundred one billion, one hundred one million, two hundred thousand, one hundred twenty-one".