1222140044 has 12 divisors (see below), whose sum is σ = 2196549264. Its totient is φ = 594554544.

The previous prime is 1222140037. The next prime is 1222140053. The reversal of 1222140044 is 4400412221.

It is a junction number, because it is equal to n+sod(n) for n = 1222139998 and 1222140025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4128704 + ... + 4128999.

It is an arithmetic number, because the mean of its divisors is an integer number (183045772).

Almost surely, 2^1222140044 is an apocalyptic number.

It is an amenable number.

1222140044 is a deficient number, since it is larger than the sum of its proper divisors (974409220).

1222140044 is a wasteful number, since it uses less digits than its factorization.

1222140044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8257744 (or 8257742 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1222140044 is about 34959.1196113403. The cubic root of 1222140044 is about 1069.1541467825.

Adding to 1222140044 its reverse (4400412221), we get a palindrome (5622552265).

The spelling of 1222140044 in words is "one billion, two hundred twenty-two million, one hundred forty thousand, forty-four".