102102213232121 has 4 divisors (see below), whose sum is σ = 102103073151744. Its totient is φ = 102101353312500.

The previous prime is 102102213232099. The next prime is 102102213232127. The reversal of 102102213232121 is 121232312201201.

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 102102213232121 - 2¹⁰ = 102102213231097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102102213232127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429781685 + ... + 430019186.

It is an arithmetic number, because the mean of its divisors is an integer number (25525768287936).

Almost surely, 2^{102102213232121} is an apocalyptic number.

It is an amenable number.

102102213232121 is a deficient number, since it is larger than the sum of its proper divisors (859919623).

102102213232121 is an equidigital number, since it uses as much as digits as its factorization.

102102213232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859919622.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 102102213232121 its reverse (121232312201201), we get a palindrome (223334525433322).

The spelling of 102102213232121 in words is "one hundred two trillion, one hundred two billion, two hundred thirteen million, two hundred thirty-two thousand, one hundred twenty-one".