20122110100 has 18 divisors (see below), whose sum is σ = 43664979134. Its totient is φ = 8048844000.

The previous prime is 20122110097. The next prime is 20122110121. The reversal of 20122110100 is 101122102.

It can be written as a sum of positive squares in 3 ways, for example, as 1695133584 + 18426976516 = 41172^2 + 135746^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

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, 100610451 + ... + 100610650.

Almost surely, 2^20122110100 is an apocalyptic number.

20122110100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122110100 is an abundant number, since it is smaller than the sum of its proper divisors (23542869034).

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

20122110100 is a wasteful number, since it uses less digits than its factorization.

20122110100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201221115 (or 201221108 counting only the distinct ones).

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

Adding to 20122110100 its reverse (101122102), we get a palindrome (20223232202).

It can be divided in two parts, 2012 and 2110100, that added together give a palindrome (2112112).

The spelling of 20122110100 in words is "twenty billion, one hundred twenty-two million, one hundred ten thousand, one hundred".