1223143222 has 16 divisors (see below), whose sum is σ = 2136380832. Its totient is φ = 514313280.

The previous prime is 1223143193. The next prime is 1223143247. The reversal of 1223143222 is 2223413221.

It is a junction number, because it is equal to n+sod(n) for n = 1223143193 and 1223143202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 823479 + ... + 824962.

It is an arithmetic number, because the mean of its divisors is an integer number (133523802).

Almost surely, 2^1223143222 is an apocalyptic number.

1223143222 is a deficient number, since it is larger than the sum of its proper divisors (913237610).

1223143222 is a wasteful number, since it uses less digits than its factorization.

1223143222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648503.

The product of its digits is 1152, while the sum is 22.

The square root of 1223143222 is about 34973.4645409916. The cubic root of 1223143222 is about 1069.4466006068.

Adding to 1223143222 its reverse (2223413221), we get a palindrome (3446556443).

The spelling of 1223143222 in words is "one billion, two hundred twenty-three million, one hundred forty-three thousand, two hundred twenty-two".