20002211011 has 4 divisors (see below), whose sum is σ = 20002542912. Its totient is φ = 20001879112.

The previous prime is 20002210961. The next prime is 20002211051. The reversal of 20002211011 is 11011220002.

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 20002211011 - 2⁷ = 20002210883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002211051) 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, 47251 + ... + 205516.

It is an arithmetic number, because the mean of its divisors is an integer number (5000635728).

Almost surely, 2^20002211011 is an apocalyptic number.

20002211011 is a deficient number, since it is larger than the sum of its proper divisors (331901).

20002211011 is an equidigital number, since it uses as much as digits as its factorization.

20002211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331900.

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

Adding to 20002211011 its reverse (11011220002), we get a palindrome (31013431013).

The spelling of 20002211011 in words is "twenty billion, two million, two hundred eleven thousand, eleven".