1222143044 has 24 divisors (see below), whose sum is σ = 2158783200. Its totient is φ = 605367360.

The previous prime is 1222143037. The next prime is 1222143049. The reversal of 1222143044 is 4403412221.

It is not an unprimeable number, because it can be changed into a prime (1222143049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287567 + ... + 291785.

It is an arithmetic number, because the mean of its divisors is an integer number (89949300).

Almost surely, 2^1222143044 is an apocalyptic number.

It is an amenable number.

1222143044 is a deficient number, since it is larger than the sum of its proper divisors (936640156).

1222143044 is a wasteful number, since it uses less digits than its factorization.

1222143044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4883 (or 4881 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1222143044 is about 34959.1625185730. The cubic root of 1222143044 is about 1069.1550216031.

Adding to 1222143044 its reverse (4403412221), we get a palindrome (5625555265).

The spelling of 1222143044 in words is "one billion, two hundred twenty-two million, one hundred forty-three thousand, forty-four".