10020020000 has 60 divisors (see below), whose sum is σ = 24650801406. Its totient is φ = 4008000000.

The previous prime is 10020019969. The next prime is 10020020009. The reversal of 10020020000 is 2002001.

10020020000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 780196624 + 9239823376 = 27932^2 + 96124^2 .

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

It is not an unprimeable number, because it can be changed into a prime (10020020009) 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 9 ways as a sum of consecutive naturals, for example, 230501 + ... + 270500.

Almost surely, 2^10020020000 is an apocalyptic number.

10020020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020020000 is an abundant number, since it is smaller than the sum of its proper divisors (14630781406).

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

10020020000 is an frugal number, since it uses more digits than its factorization.

10020020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501031 (or 501008 counting only the distinct ones).

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

Adding to 10020020000 its reverse (2002001), we get a palindrome (10022022001).

The spelling of 10020020000 in words is "ten billion, twenty million, twenty thousand".