1220143322 has 8 divisors (see below), whose sum is σ = 1889254272. Its totient is φ = 590391900.

The previous prime is 1220143283. The next prime is 1220143367. The reversal of 1220143322 is 2233410221.

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

It is a junction number, because it is equal to n+sod(n) for n = 1220143294 and 1220143303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9839804 + ... + 9839927.

It is an arithmetic number, because the mean of its divisors is an integer number (236156784).

Almost surely, 2^1220143322 is an apocalyptic number.

1220143322 is a deficient number, since it is larger than the sum of its proper divisors (669110950).

1220143322 is a wasteful number, since it uses less digits than its factorization.

1220143322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19679764.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1220143322 is about 34930.5499813559. The cubic root of 1220143322 is about 1068.5715710837.

Adding to 1220143322 its reverse (2233410221), we get a palindrome (3453553543).

The spelling of 1220143322 in words is "one billion, two hundred twenty million, one hundred forty-three thousand, three hundred twenty-two".