102100000202121 has 8 divisors (see below), whose sum is σ = 136133973036544. Its totient is φ = 68066347084560.

The previous prime is 102100000202119. The next prime is 102100000202153. The reversal of 102100000202121 is 121202000001201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102100000202121 - 2¹ = 102100000202119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102100000202097 and 102100000202106.

It is not an unprimeable number, because it can be changed into a prime (102100000202111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79183081 + ... + 80462166.

It is an arithmetic number, because the mean of its divisors is an integer number (17016746629568).

Almost surely, 2^{102100000202121} is an apocalyptic number.

It is an amenable number.

102100000202121 is a deficient number, since it is larger than the sum of its proper divisors (34033972834423).

102100000202121 is a wasteful number, since it uses less digits than its factorization.

102100000202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159858431.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102100000202121 its reverse (121202000001201), we get a palindrome (223302000203322).

The spelling of 102100000202121 in words is "one hundred two trillion, one hundred billion, two hundred two thousand, one hundred twenty-one".