20012110002 has 24 divisors (see below), whose sum is σ = 43362724860. Its totient is φ = 6670218240.

The previous prime is 20012109967. The next prime is 20012110007. The reversal of 20012110002 is 20001121002.

It can be written as a sum of positive squares in 2 ways, for example, as 15057498681 + 4954611321 = 122709^2 + 70389^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20012110007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284602 + ... + 347882.

Almost surely, 2^20012110002 is an apocalyptic number.

20012110002 is an abundant number, since it is smaller than the sum of its proper divisors (23350614858).

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

20012110002 is a wasteful number, since it uses less digits than its factorization.

20012110002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80858 (or 80855 counting only the distinct ones).

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

Adding to 20012110002 its reverse (20001121002), we get a palindrome (40013231004).

The spelling of 20012110002 in words is "twenty billion, twelve million, one hundred ten thousand, two".