20111102100201 has 16 divisors (see below), whose sum is σ = 31977901476864. Its totient is φ = 10992403632144.

The previous prime is 20111102100161. The next prime is 20111102100217. The reversal of 20111102100201 is 10200120111102.

It is not a de Polignac number, because 20111102100201 - 2⁹ = 20111102099689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20111102100301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20818945791 + ... + 20818946756.

It is an arithmetic number, because the mean of its divisors is an integer number (1998618842304).

Almost surely, 2^{20111102100201} is an apocalyptic number.

20111102100201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20111102100201 is a deficient number, since it is larger than the sum of its proper divisors (11866799376663).

20111102100201 is a wasteful number, since it uses less digits than its factorization.

20111102100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41637892580.

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

Adding to 20111102100201 its reverse (10200120111102), we get a palindrome (30311222211303).

The spelling of 20111102100201 in words is "twenty trillion, one hundred eleven billion, one hundred two million, one hundred thousand, two hundred one".