20000210000 has 100 divisors (see below), whose sum is σ = 49604562084. Its totient is φ = 7804800000.

The previous prime is 20000209979. The next prime is 20000210003. The reversal of 20000210000 is 1200002.

It can be written as a sum of positive squares in 10 ways, for example, as 19871977024 + 128232976 = 140968^2 + 11324^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (5).

20000210000 is a modest number, since divided by 210000 gives 20000 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000210003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 385610 + ... + 434390.

Almost surely, 2^20000210000 is an apocalyptic number.

20000210000 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 20000210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24802281042).

20000210000 is an abundant number, since it is smaller than the sum of its proper divisors (29604352084).

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

20000210000 is an equidigital number, since it uses as much as digits as its factorization.

20000210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48850 (or 48829 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

Adding to 20000210000 its reverse (1200002), we get a palindrome (20001410002).

The spelling of 20000210000 in words is "twenty billion, two hundred ten thousand".