102222110321 has 4 divisors (see below), whose sum is σ = 108235175652. Its totient is φ = 96209044992.

The previous prime is 102222110281. The next prime is 102222110329. The reversal of 102222110321 is 123011222201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48195616225 + 54026494096 = 219535^2 + 232436^2 .

It is a cyclic number.

It is not a de Polignac number, because 102222110321 - 2⁶ = 102222110257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 6013065313 = 102222110321 / (1 + 0 + 2 + 2 + 2 + 2 + 1 + 1 + 0 + 3 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102222110321.

It is not an unprimeable number, because it can be changed into a prime (102222110329) 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, 3006532640 + ... + 3006532673.

It is an arithmetic number, because the mean of its divisors is an integer number (27058793913).

Almost surely, 2^102222110321 is an apocalyptic number.

It is an amenable number.

102222110321 is a deficient number, since it is larger than the sum of its proper divisors (6013065331).

102222110321 is an equidigital number, since it uses as much as digits as its factorization.

102222110321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6013065330.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 102222110321 its reverse (123011222201), we get a palindrome (225233332522).

The spelling of 102222110321 in words is "one hundred two billion, two hundred twenty-two million, one hundred ten thousand, three hundred twenty-one".