20022868211 has 4 divisors (see below), whose sum is σ = 21076703400. Its totient is φ = 18969033024.

The previous prime is 20022868181. The next prime is 20022868213. The reversal of 20022868211 is 11286822002.

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-20022868211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022868213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526917566 + ... + 526917603.

It is an arithmetic number, because the mean of its divisors is an integer number (5269175850).

Almost surely, 2^20022868211 is an apocalyptic number.

20022868211 is a deficient number, since it is larger than the sum of its proper divisors (1053835189).

20022868211 is a wasteful number, since it uses less digits than its factorization.

20022868211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053835188.

The product of its (nonzero) digits is 6144, while the sum is 32.

The spelling of 20022868211 in words is "twenty billion, twenty-two million, eight hundred sixty-eight thousand, two hundred eleven".