102120110202121 has 16 divisors (see below), whose sum is σ = 112714725485376. Its totient is φ = 91747387800000.

The previous prime is 102120110202079. The next prime is 102120110202133. The reversal of 102120110202121 is 121202011021201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102120110202121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102120110202095 and 102120110202104.

It is not an unprimeable number, because it can be changed into a prime (102120110202181) 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, 84350235 + ... + 85552336.

It is an arithmetic number, because the mean of its divisors is an integer number (7044670342836).

Almost surely, 2^{102120110202121} is an apocalyptic number.

102120110202121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102120110202121 is a deficient number, since it is larger than the sum of its proper divisors (10594615283255).

102120110202121 is a wasteful number, since it uses less digits than its factorization.

102120110202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169903224.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102120110202121 its reverse (121202011021201), we get a palindrome (223322121223322).

The spelling of 102120110202121 in words is "one hundred two trillion, one hundred twenty billion, one hundred ten million, two hundred two thousand, one hundred twenty-one".