102102100202121 has 32 divisors (see below), whose sum is σ = 140104607731200. Its totient is φ = 66099727641600.

The previous prime is 102102100202099. The next prime is 102102100202129. The reversal of 102102100202121 is 121202001201201.

It is not a de Polignac number, because 102102100202121 - 2⁷ = 102102100201993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102102100202121.

It is not an unprimeable number, because it can be changed into a prime (102102100202129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33506311 + ... + 36426323.

It is an arithmetic number, because the mean of its divisors is an integer number (4378268991600).

Almost surely, 2^{102102100202121} is an apocalyptic number.

It is an amenable number.

102102100202121 is a deficient number, since it is larger than the sum of its proper divisors (38002507529079).

102102100202121 is a wasteful number, since it uses less digits than its factorization.

102102100202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921377.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102102100202121 its reverse (121202001201201), we get a palindrome (223304101403322).

The spelling of 102102100202121 in words is "one hundred two trillion, one hundred two billion, one hundred million, two hundred two thousand, one hundred twenty-one".