102102244121 has 4 divisors (see below), whose sum is σ = 102112300752. Its totient is φ = 102092187492.

The previous prime is 102102244081. The next prime is 102102244157. The reversal of 102102244121 is 121442201201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102102244121 - 2³⁰ = 101028502297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102102244093 and 102102244102.

It is not an unprimeable number, because it can be changed into a prime (102102244721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5013071 + ... + 5033396.

It is an arithmetic number, because the mean of its divisors is an integer number (25528075188).

Almost surely, 2^102102244121 is an apocalyptic number.

It is an amenable number.

102102244121 is a deficient number, since it is larger than the sum of its proper divisors (10056631).

102102244121 is a wasteful number, since it uses less digits than its factorization.

102102244121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10056630.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 102102244121 its reverse (121442201201), we get a palindrome (223544445322).

The spelling of 102102244121 in words is "one hundred two billion, one hundred two million, two hundred forty-four thousand, one hundred twenty-one".