20100000000002 has 16 divisors (see below), whose sum is σ = 32469322297272. Its totient is φ = 9276896926080.

The previous prime is 20099999999987. The next prime is 20100000000011. The reversal of 20100000000002 is 20000000000102.

It can be written as a sum of positive squares in 4 ways, for example, as 16953814485001 + 3146185515001 = 4117501^2 + 1773749^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10730468 + ... + 12463664.

Almost surely, 2^{20100000000002} is an apocalyptic number.

20100000000002 is a deficient number, since it is larger than the sum of its proper divisors (12369322297270).

20100000000002 is a wasteful number, since it uses less digits than its factorization.

20100000000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179253.

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

Adding to 20100000000002 its reverse (20000000000102), we get a palindrome (40100000000104).

The spelling of 20100000000002 in words is "twenty trillion, one hundred billion, two", and thus it is an aban number.