20522204011 has 12 divisors (see below), whose sum is σ = 21273626856. Its totient is φ = 19796456160.

The previous prime is 20522203991. The next prime is 20522204023. The reversal of 20522204011 is 11040222502.

It is not a de Polignac number, because 20522204011 - 2⁵ = 20522203979 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 20522204011.

It is not an unprimeable number, because it can be changed into a prime (20522204081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266680 + ... + 334906.

It is an arithmetic number, because the mean of its divisors is an integer number (1772802238).

Almost surely, 2^20522204011 is an apocalyptic number.

20522204011 is a deficient number, since it is larger than the sum of its proper divisors (751422845).

20522204011 is an equidigital number, since it uses as much as digits as its factorization.

20522204011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68602 (or 68571 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 20522204011 its reverse (11040222502), we get a palindrome (31562426513).

The spelling of 20522204011 in words is "twenty billion, five hundred twenty-two million, two hundred four thousand, eleven".