20000022011 has 4 divisors (see below), whose sum is σ = 21176493912. Its totient is φ = 18823550112.

The previous prime is 20000021989. The next prime is 20000022017. The reversal of 20000022011 is 11022000002.

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 20000022011 - 2³⁰ = 18926280187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20000022011.

It is not an unprimeable number, because it can be changed into a prime (20000022017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588235925 + ... + 588235958.

It is an arithmetic number, because the mean of its divisors is an integer number (5294123478).

Almost surely, 2^20000022011 is an apocalyptic number.

20000022011 is a deficient number, since it is larger than the sum of its proper divisors (1176471901).

20000022011 is a wasteful number, since it uses less digits than its factorization.

20000022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176471900.

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

Adding to 20000022011 its reverse (11022000002), we get a palindrome (31022022013).

The spelling of 20000022011 in words is "twenty billion, twenty-two thousand, eleven".