20010110100210 has 24 divisors (see below), whose sum is σ = 52026286260780. Its totient is φ = 5336029360032.

The previous prime is 20010110100203. The next prime is 20010110100217. The reversal of 20010110100210 is 1200101101002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20010110100203) and next prime (20010110100217).

It can be written as a sum of positive squares in 2 ways, for example, as 19342377612009 + 667732488201 = 4397997^2 + 817149^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 20010110100192 and 20010110100201.

It is not an unprimeable number, because it can be changed into a prime (20010110100217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111167278245 + ... + 111167278424.

Almost surely, 2^{20010110100210} is an apocalyptic number.

20010110100210 is an abundant number, since it is smaller than the sum of its proper divisors (32016176160570).

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

20010110100210 is a wasteful number, since it uses less digits than its factorization.

20010110100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222334556682 (or 222334556679 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20010110100210 its reverse (1200101101002), we get a palindrome (21210211201212).

It can be divided in two parts, 20010 and 110100210, that added together give a triangular number (110120220 = T₁₄₈₄₀).

The spelling of 20010110100210 in words is "twenty trillion, ten billion, one hundred ten million, one hundred thousand, two hundred ten".