20001202000 has 160 divisors (see below), whose sum is σ = 52202221344. Its totient is φ = 7368192000.

The previous prime is 20001201991. The next prime is 20001202031. The reversal of 20001202000 is 20210002.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 19995091216 + 6110784 = 141404^2 + 2472^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21345532 + ... + 21346468.

Almost surely, 2^20001202000 is an apocalyptic number.

20001202000 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 20001202000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26101110672).

20001202000 is an abundant number, since it is smaller than the sum of its proper divisors (32201019344).

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

20001202000 is a wasteful number, since it uses less digits than its factorization.

20001202000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794 (or 1778 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 20001202000 its reverse (20210002), we get a palindrome (20021412002).

The spelling of 20001202000 in words is "twenty billion, one million, two hundred two thousand".