1143430222 has 64 divisors (see below), whose sum is σ = 2036482560. Its totient is φ = 475891200.

The previous prime is 1143430219. The next prime is 1143430229. The reversal of 1143430222 is 2220343411.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1143430193 and 1143430202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143430229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2347663 + ... + 2348149.

It is an arithmetic number, because the mean of its divisors is an integer number (31820040).

Almost surely, 2^1143430222 is an apocalyptic number.

1143430222 is a deficient number, since it is larger than the sum of its proper divisors (893052338).

1143430222 is a wasteful number, since it uses less digits than its factorization.

1143430222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697.

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

The square root of 1143430222 is about 33814.6450816802. The cubic root of 1143430222 is about 1045.6906439291.

Adding to 1143430222 its reverse (2220343411), we get a palindrome (3363773633).

The spelling of 1143430222 in words is "one billion, one hundred forty-three million, four hundred thirty thousand, two hundred twenty-two".