102000210221121 has 4 divisors (see below), whose sum is σ = 136000280294832. Its totient is φ = 68000140147412.

The previous prime is 102000210221093. The next prime is 102000210221123. The reversal of 102000210221121 is 121122012000201.

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 102000210221121 - 2⁶ = 102000210221057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102000210221121.

It is not an unprimeable number, because it can be changed into a prime (102000210221123) 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, 17000035036851 + ... + 17000035036856.

It is an arithmetic number, because the mean of its divisors is an integer number (34000070073708).

Almost surely, 2^{102000210221121} is an apocalyptic number.

It is an amenable number.

102000210221121 is a deficient number, since it is larger than the sum of its proper divisors (34000070073711).

102000210221121 is an equidigital number, since it uses as much as digits as its factorization.

102000210221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34000070073710.

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

Adding to 102000210221121 its reverse (121122012000201), we get a palindrome (223122222221322).

The spelling of 102000210221121 in words is "one hundred two trillion, two hundred ten million, two hundred twenty-one thousand, one hundred twenty-one".