105231222 has 48 divisors (see below), whose sum is σ = 233288640. Its totient is φ = 34272000.

The previous prime is 105231211. The next prime is 105231281. The reversal of 105231222 is 222132501.

It is a super-2 number, since 2×105231222² = 22147220167226568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 105231195 and 105231204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262222 + ... + 262622.

It is an arithmetic number, because the mean of its divisors is an integer number (4860180).

Almost surely, 2^105231222 is an apocalyptic number.

105231222 is an abundant number, since it is smaller than the sum of its proper divisors (128057418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105231222 is a wasteful number, since it uses less digits than its factorization.

105231222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 105231222 is about 10258.2270397959. The cubic root of 105231222 is about 472.1154408575.

Adding to 105231222 its reverse (222132501), we get a palindrome (327363723).

The spelling of 105231222 in words is "one hundred five million, two hundred thirty-one thousand, two hundred twenty-two".