105850221 has 4 divisors (see below), whose sum is σ = 141133632. Its totient is φ = 70566812.

The previous prime is 105850201. The next prime is 105850231. The reversal of 105850221 is 122058501.

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 a de Polignac number, because none of the positive numbers 2^k-105850221 is a prime.

It is a super-2 number, since 2×105850221² = 22408538571497682, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 105850191 and 105850200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105850201) 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, 17641701 + ... + 17641706.

It is an arithmetic number, because the mean of its divisors is an integer number (35283408).

Almost surely, 2^105850221 is an apocalyptic number.

It is an amenable number.

105850221 is a deficient number, since it is larger than the sum of its proper divisors (35283411).

105850221 is an equidigital number, since it uses as much as digits as its factorization.

105850221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35283410.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 105850221 is about 10288.3536583848. The cubic root of 105850221 is about 473.0393359888.

The spelling of 105850221 in words is "one hundred five million, eight hundred fifty thousand, two hundred twenty-one".