1222112250 has 48 divisors (see below), whose sum is σ = 3304597608. Its totient is φ = 325896000.

The previous prime is 1222112249. The next prime is 1222112267. The reversal of 1222112250 is 522112221.

It can be written as a sum of positive squares in 4 ways, for example, as 177982281 + 1044129969 = 13341^2 + 32313^2 .

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

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, 269331 + ... + 273830.

Almost surely, 2^1222112250 is an apocalyptic number.

1222112250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222112250 is an abundant number, since it is smaller than the sum of its proper divisors (2082485358).

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

1222112250 is a wasteful number, since it uses less digits than its factorization.

1222112250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543184 (or 543171 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1222112250 is about 34958.7220876279. The cubic root of 1222112250 is about 1069.1460417933.

Adding to 1222112250 its reverse (522112221), we get a palindrome (1744224471).

The spelling of 1222112250 in words is "one billion, two hundred twenty-two million, one hundred twelve thousand, two hundred fifty".