20010100000002 has 64 divisors (see below), whose sum is σ = 46182829615104. Its totient is φ = 5661492537600.

The previous prime is 20010100000001. The next prime is 20010100000049. The reversal of 20010100000002 is 20000000101002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is not an unprimeable number, because it can be changed into a prime (20010100000001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225673377 + ... + 225762027.

It is an arithmetic number, because the mean of its divisors is an integer number (721606712736).

Almost surely, 2^{20010100000002} is an apocalyptic number.

20010100000002 is an abundant number, since it is smaller than the sum of its proper divisors (26172729615102).

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

20010100000002 is a wasteful number, since it uses less digits than its factorization.

20010100000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140943.

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 20010100000002 its reverse (20000000101002), we get a palindrome (40010100101004).

The spelling of 20010100000002 in words is "twenty trillion, ten billion, one hundred million, two", and thus it is an aban number.