20000101211 has 4 divisors (see below), whose sum is σ = 20111833800. Its totient is φ = 19888368624.

The previous prime is 20000101207. The next prime is 20000101213. The reversal of 20000101211 is 11210100002.

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 20000101211 - 2² = 20000101207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000101213) 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, 55866026 + ... + 55866383.

It is an arithmetic number, because the mean of its divisors is an integer number (5027958450).

Almost surely, 2^20000101211 is an apocalyptic number.

20000101211 is a deficient number, since it is larger than the sum of its proper divisors (111732589).

20000101211 is a wasteful number, since it uses less digits than its factorization.

20000101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111732588.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20000101211 its reverse (11210100002), we get a palindrome (31210201213).

The spelling of 20000101211 in words is "twenty billion, one hundred one thousand, two hundred eleven".