105022221 has 4 divisors (see below), whose sum is σ = 140029632. Its totient is φ = 70014812.

The previous prime is 105022217. The next prime is 105022223. The reversal of 105022221 is 122220501.

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 not a de Polignac number, because 105022221 - 2² = 105022217 is a prime.

It is a super-2 number, since 2×105022221² = 22059333807545682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105022223) 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, 17503701 + ... + 17503706.

It is an arithmetic number, because the mean of its divisors is an integer number (35007408).

Almost surely, 2^105022221 is an apocalyptic number.

It is an amenable number.

105022221 is a deficient number, since it is larger than the sum of its proper divisors (35007411).

105022221 is an equidigital number, since it uses as much as digits as its factorization.

105022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35007410.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 105022221 is about 10248.0349823759. The cubic root of 105022221 is about 471.8026756455.

Adding to 105022221 its reverse (122220501), we get a palindrome (227242722).

The spelling of 105022221 in words is "one hundred five million, twenty-two thousand, two hundred twenty-one".