210102110212101 has 16 divisors (see below), whose sum is σ = 283786268290560. Its totient is φ = 138246286459760.

The previous prime is 210102110212037. The next prime is 210102110212151. The reversal of 210102110212101 is 101212011201012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 210102110212101 - 2⁶ = 210102110212037 is a prime.

It is a super-2 number, since 2×210102110212101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210102110212151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408949671 + ... + 409463108.

It is an arithmetic number, because the mean of its divisors is an integer number (17736641768160).

Almost surely, 2^{210102110212101} is an apocalyptic number.

It is an amenable number.

210102110212101 is a deficient number, since it is larger than the sum of its proper divisors (73684158078459).

210102110212101 is a wasteful number, since it uses less digits than its factorization.

210102110212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818413896.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210102110212101 its reverse (101212011201012), we get a palindrome (311314121413113).

The spelling of 210102110212101 in words is "two hundred ten trillion, one hundred two billion, one hundred ten million, two hundred twelve thousand, one hundred one".