20000100211211 has 4 divisors (see below), whose sum is σ = 20000122955424. Its totient is φ = 20000077467000.

The previous prime is 20000100211207. The next prime is 20000100211213. The reversal of 20000100211211 is 11211200100002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20000100211211 - 2² = 20000100211207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000100211192 and 20000100211201.

It is not an unprimeable number, because it can be changed into a prime (20000100211213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9997715 + ... + 11830236.

It is an arithmetic number, because the mean of its divisors is an integer number (5000030738856).

Almost surely, 2^{20000100211211} is an apocalyptic number.

20000100211211 is a deficient number, since it is larger than the sum of its proper divisors (22744213).

20000100211211 is an equidigital number, since it uses as much as digits as its factorization.

20000100211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22744212.

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

Adding to 20000100211211 its reverse (11211200100002), we get a palindrome (31211300311213).

The spelling of 20000100211211 in words is "twenty trillion, one hundred million, two hundred eleven thousand, two hundred eleven".