105524221 has 12 divisors (see below), whose sum is σ = 117129376. Its totient is φ = 94988520.

The previous prime is 105524203. The next prime is 105524231. The reversal of 105524221 is 122425501.

It is not a de Polignac number, because 105524221 - 2¹¹ = 105522173 is a prime.

It is a super-2 number, since 2×105524221² = 22270722435313682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105524192 and 105524201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105524231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8230 + ... + 16696.

Almost surely, 2^105524221 is an apocalyptic number.

105524221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105524221 is a deficient number, since it is larger than the sum of its proper divisors (11605155).

105524221 is a wasteful number, since it uses less digits than its factorization.

105524221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8592 (or 8581 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 105524221 is about 10272.4982842539. The cubic root of 105524221 is about 472.5532106960.

Adding to 105524221 its reverse (122425501), we get a palindrome (227949722).

The spelling of 105524221 in words is "one hundred five million, five hundred twenty-four thousand, two hundred twenty-one".