20101200211121 has 8 divisors (see below), whose sum is σ = 20591805878784. Its totient is φ = 19610610376480.

The previous prime is 20101200211033. The next prime is 20101200211123. The reversal of 20101200211121 is 12111200210102.

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 20101200211121 - 2¹⁰ = 20101200210097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20101200211096 and 20101200211105.

It is not an unprimeable number, because it can be changed into a prime (20101200211123) 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, 1367681 + ... + 6486366.

It is an arithmetic number, because the mean of its divisors is an integer number (2573975734848).

Almost surely, 2^{20101200211121} is an apocalyptic number.

It is an amenable number.

20101200211121 is a deficient number, since it is larger than the sum of its proper divisors (490605667663).

20101200211121 is an equidigital number, since it uses as much as digits as its factorization.

20101200211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7916511.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20101200211121 its reverse (12111200210102), we get a palindrome (32212400421223).

The spelling of 20101200211121 in words is "twenty trillion, one hundred one billion, two hundred million, two hundred eleven thousand, one hundred twenty-one".