102111210022101 has 48 divisors (see below), whose sum is σ = 159312891291840. Its totient is φ = 58004948171520.

The previous prime is 102111210022093. The next prime is 102111210022141. The reversal of 102111210022101 is 101220012111201.

It is a happy number.

It is not a de Polignac number, because 102111210022101 - 2³ = 102111210022093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102111210022141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24660855 + ... + 28502283.

It is an arithmetic number, because the mean of its divisors is an integer number (3319018568580).

Almost surely, 2^{102111210022101} is an apocalyptic number.

It is an amenable number.

102111210022101 is a deficient number, since it is larger than the sum of its proper divisors (57201681269739).

102111210022101 is a wasteful number, since it uses less digits than its factorization.

102111210022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842514 (or 3842507 counting only the distinct ones).

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

Adding to 102111210022101 its reverse (101220012111201), we get a palindrome (203331222133302).

The spelling of 102111210022101 in words is "one hundred two trillion, one hundred eleven billion, two hundred ten million, twenty-two thousand, one hundred one".