20001210011211 has 48 divisors (see below), whose sum is σ = 32239577728512. Its totient is φ = 10951413781440.

The previous prime is 20001210011191. The next prime is 20001210011213. The reversal of 20001210011211 is 11211001210002.

It is not a de Polignac number, because 20001210011211 - 2¹¹ = 20001210009163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20001210011213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44868021 + ... + 45311606.

It is an arithmetic number, because the mean of its divisors is an integer number (671657869344).

Almost surely, 2^{20001210011211} is an apocalyptic number.

20001210011211 is a deficient number, since it is larger than the sum of its proper divisors (12238367717301).

20001210011211 is a wasteful number, since it uses less digits than its factorization.

20001210011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90179712 (or 90179701 counting only the distinct ones).

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

Adding to 20001210011211 its reverse (11211001210002), we get a palindrome (31212211221213).

The spelling of 20001210011211 in words is "twenty trillion, one billion, two hundred ten million, eleven thousand, two hundred eleven".