105105221203 has 4 divisors (see below), whose sum is σ = 105112541160. Its totient is φ = 105097901248.

The previous prime is 105105221189. The next prime is 105105221227. The reversal of 105105221203 is 302122501501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105105221203 is a prime.

It is a super-2 number, since 2×105105221203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105105221293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3638398 + ... + 3667171.

It is an arithmetic number, because the mean of its divisors is an integer number (26278135290).

Almost surely, 2^105105221203 is an apocalyptic number.

105105221203 is a deficient number, since it is larger than the sum of its proper divisors (7319957).

105105221203 is an equidigital number, since it uses as much as digits as its factorization.

105105221203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7319956.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 105105221203 its reverse (302122501501), we get a palindrome (407227722704).

The spelling of 105105221203 in words is "one hundred five billion, one hundred five million, two hundred twenty-one thousand, two hundred three".