20012110200 has 144 divisors (see below), whose sum is σ = 67721167800. Its totient is φ = 5295763200.

The previous prime is 20012110199. The next prime is 20012110253. The reversal of 20012110200 is 201121002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 193366 + ... + 278234.

Almost surely, 2^20012110200 is an apocalyptic number.

20012110200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20012110200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33860583900).

20012110200 is an abundant number, since it is smaller than the sum of its proper divisors (47709057600).

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

20012110200 is a wasteful number, since it uses less digits than its factorization.

20012110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85022 (or 85010 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20012110200 its reverse (201121002), we get a palindrome (20213231202).

It can be divided in two parts, 200 and 12110200, that added together give a square (12110400 = 3480²).

The spelling of 20012110200 in words is "twenty billion, twelve million, one hundred ten thousand, two hundred".