102320221211 has 4 divisors (see below), whose sum is σ = 110191007472. Its totient is φ = 94449434952.

The previous prime is 102320221189. The next prime is 102320221229. The reversal of 102320221211 is 112122023201.

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

It is a cyclic number.

It is not a de Polignac number, because 102320221211 - 2⁶ = 102320221147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102320221211.

It is not an unprimeable number, because it can be changed into a prime (102320221271) 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, 3935393111 + ... + 3935393136.

It is an arithmetic number, because the mean of its divisors is an integer number (27547751868).

Almost surely, 2^102320221211 is an apocalyptic number.

102320221211 is a deficient number, since it is larger than the sum of its proper divisors (7870786261).

102320221211 is an equidigital number, since it uses as much as digits as its factorization.

102320221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7870786260.

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

Adding to 102320221211 its reverse (112122023201), we get a palindrome (214442244412).

The spelling of 102320221211 in words is "one hundred two billion, three hundred twenty million, two hundred twenty-one thousand, two hundred eleven".