20010010020211 has 4 divisors (see below), whose sum is σ = 20338042971424. Its totient is φ = 19681977069000.

The previous prime is 20010010020197. The next prime is 20010010020233. The reversal of 20010010020211 is 11202001001002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20010010020211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010010020251) 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, 164016475515 + ... + 164016475636.

It is an arithmetic number, because the mean of its divisors is an integer number (5084510742856).

Almost surely, 2^{20010010020211} is an apocalyptic number.

20010010020211 is a deficient number, since it is larger than the sum of its proper divisors (328032951213).

20010010020211 is an equidigital number, since it uses as much as digits as its factorization.

20010010020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328032951212.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20010010020211 its reverse (11202001001002), we get a palindrome (31212011021213).

The spelling of 20010010020211 in words is "twenty trillion, ten billion, ten million, twenty thousand, two hundred eleven".