210102110122101 has 16 divisors (see below), whose sum is σ = 280313191500288. Its totient is φ = 139979578852800.

The previous prime is 210102110122057. The next prime is 210102110122109. The reversal of 210102110122101 is 101221011201012.

It is a happy number.

It is not a de Polignac number, because 210102110122101 - 2³¹ = 210099962638453 is a prime.

It is a super-2 number, since 2×210102110122101² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210102110122109) 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, 26818716 + ... + 33755706.

It is an arithmetic number, because the mean of its divisors is an integer number (17519574468768).

Almost surely, 2^{210102110122101} is an apocalyptic number.

It is an amenable number.

210102110122101 is a deficient number, since it is larger than the sum of its proper divisors (70211081378187).

210102110122101 is a wasteful number, since it uses less digits than its factorization.

210102110122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6943372.

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

Adding to 210102110122101 its reverse (101221011201012), we get a palindrome (311323121323113).

The spelling of 210102110122101 in words is "two hundred ten trillion, one hundred two billion, one hundred ten million, one hundred twenty-two thousand, one hundred one".