2101010200106 has 4 divisors (see below), whose sum is σ = 3151515300162. Its totient is φ = 1050505100052.

The previous prime is 2101010200103. The next prime is 2101010200169. The reversal of 2101010200106 is 6010020101012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2025142455625 + 75867744481 = 1423075^2 + 275441^2 .

It is a super-2 number, since 2×2101010200106² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2101010200103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525252550025 + ... + 525252550028.

Almost surely, 2^{2101010200106} is an apocalyptic number.

2101010200106 is a deficient number, since it is larger than the sum of its proper divisors (1050505100056).

2101010200106 is a wasteful number, since it uses less digits than its factorization.

2101010200106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050505100055.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 2101010200106 its reverse (6010020101012), we get a palindrome (8111030301118).

The spelling of 2101010200106 in words is "two trillion, one hundred one billion, ten million, two hundred thousand, one hundred six".