1222182142 has 8 divisors (see below), whose sum is σ = 1912980816. Its totient is φ = 584521872.

The previous prime is 1222182131. The next prime is 1222182149. The reversal of 1222182142 is 2412812221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222182149) 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, 13284543 + ... + 13284634.

It is an arithmetic number, because the mean of its divisors is an integer number (239122602).

Almost surely, 2^1222182142 is an apocalyptic number.

1222182142 is a deficient number, since it is larger than the sum of its proper divisors (690798674).

1222182142 is a wasteful number, since it uses less digits than its factorization.

1222182142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26569202.

The product of its digits is 1024, while the sum is 25.

The square root of 1222182142 is about 34959.7217094187. The cubic root of 1222182142 is about 1069.1664227173.

Adding to 1222182142 its reverse (2412812221), we get a palindrome (3634994363).

The spelling of 1222182142 in words is "one billion, two hundred twenty-two million, one hundred eighty-two thousand, one hundred forty-two".