105011225 has 12 divisors (see below), whose sum is σ = 142051920. Its totient is φ = 76371600.

The previous prime is 105011219. The next prime is 105011237. The reversal of 105011225 is 522110501.

105011225 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 105011225 - 2²² = 100816921 is a prime.

It is a super-2 number, since 2×105011225² = 22054714752001250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190655 + ... + 191204.

It is an arithmetic number, because the mean of its divisors is an integer number (11837660).

Almost surely, 2^105011225 is an apocalyptic number.

It is an amenable number.

105011225 is a deficient number, since it is larger than the sum of its proper divisors (37040695).

105011225 is a wasteful number, since it uses less digits than its factorization.

105011225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381880 (or 381875 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 105011225 is about 10247.4984752377. The cubic root of 105011225 is about 471.7862088977.

Adding to 105011225 its reverse (522110501), we get a palindrome (627121726).

The spelling of 105011225 in words is "one hundred five million, eleven thousand, two hundred twenty-five".