20102101020010 has 16 divisors (see below), whose sum is σ = 36184414996872. Its totient is φ = 8040699705600.

The previous prime is 20102101019981. The next prime is 20102101020011. The reversal of 20102101020010 is 1002010120102.

It can be written as a sum of positive squares in 4 ways, for example, as 14788877788161 + 5313223231849 = 3845631^2 + 2305043^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (20102101020011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16986771 + ... + 18131590.

Almost surely, 2^{20102101020010} is an apocalyptic number.

20102101020010 is a deficient number, since it is larger than the sum of its proper divisors (16082313976862).

20102101020010 is a wasteful number, since it uses less digits than its factorization.

20102101020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35175609.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20102101020010 its reverse (1002010120102), we get a palindrome (21104111140112).

The spelling of 20102101020010 in words is "twenty trillion, one hundred two billion, one hundred one million, twenty thousand, ten".