105221203 has 4 divisors (see below), whose sum is σ = 107460000. Its totient is φ = 102982408.

The previous prime is 105221201. The next prime is 105221209. The reversal of 105221203 is 302122501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302122501 = 37 ⋅8165473.

It is a cyclic number.

It is not a de Polignac number, because 105221203 - 2¹ = 105221201 is a prime.

It is a super-2 number, since 2×105221203² = 22143003121534418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105221201) 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, 1119328 + ... + 1119421.

It is an arithmetic number, because the mean of its divisors is an integer number (26865000).

Almost surely, 2^105221203 is an apocalyptic number.

105221203 is a deficient number, since it is larger than the sum of its proper divisors (2238797).

105221203 is an equidigital number, since it uses as much as digits as its factorization.

105221203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238796.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 105221203 is about 10257.7386884245. The cubic root of 105221203 is about 472.1004571083.

Adding to 105221203 its reverse (302122501), we get a palindrome (407343704).

The spelling of 105221203 in words is "one hundred five million, two hundred twenty-one thousand, two hundred three".