20001200202211 has 4 divisors (see below), whose sum is σ = 20001209986072. Its totient is φ = 20001190418352.

The previous prime is 20001200202199. The next prime is 20001200202257. The reversal of 20001200202211 is 11220200210002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20001200202211 - 2²¹ = 20001198105059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20001200202191 and 20001200202200.

It is not an unprimeable number, because it can be changed into a prime (20001200202611) 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, 527586 + ... + 6346711.

It is an arithmetic number, because the mean of its divisors is an integer number (5000302496518).

Almost surely, 2^{20001200202211} is an apocalyptic number.

20001200202211 is a deficient number, since it is larger than the sum of its proper divisors (9783861).

20001200202211 is an equidigital number, since it uses as much as digits as its factorization.

20001200202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9783860.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20001200202211 its reverse (11220200210002), we get a palindrome (31221400412213).

The spelling of 20001200202211 in words is "twenty trillion, one billion, two hundred million, two hundred two thousand, two hundred eleven".