20522011100 has 18 divisors (see below), whose sum is σ = 44532764304. Its totient is φ = 8208804400.

The previous prime is 20522011001. The next prime is 20522011109. The reversal of 20522011100 is 111022502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20522011109) 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 5 ways as a sum of consecutive naturals, for example, 102609956 + ... + 102610155.

Almost surely, 2^20522011100 is an apocalyptic number.

20522011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20522011100 is an abundant number, since it is smaller than the sum of its proper divisors (24010753204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20522011100 is a wasteful number, since it uses less digits than its factorization.

20522011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205220125 (or 205220118 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 20522011100 its reverse (111022502), we get a palindrome (20633033602).

The spelling of 20522011100 in words is "twenty billion, five hundred twenty-two million, eleven thousand, one hundred".