1220223043 has 8 divisors (see below), whose sum is σ = 1327635008. Its totient is φ = 1114746624.

The previous prime is 1220223041. The next prime is 1220223047. The reversal of 1220223043 is 3403220221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220223043 - 2¹ = 1220223041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220223043.

It is not an unprimeable number, because it can be changed into a prime (1220223041) 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, 482571 + ... + 485092.

It is an arithmetic number, because the mean of its divisors is an integer number (165954376).

Almost surely, 2^1220223043 is an apocalyptic number.

1220223043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1220223043 is a deficient number, since it is larger than the sum of its proper divisors (107411965).

1220223043 is an equidigital number, since it uses as much as digits as its factorization.

1220223043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967773.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1220223043 is about 34931.6910984853. The cubic root of 1220223043 is about 1068.5948431418.

Adding to 1220223043 its reverse (3403220221), we get a palindrome (4623443264).

It can be divided in two parts, 12202 and 23043, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 1220223043 in words is "one billion, two hundred twenty million, two hundred twenty-three thousand, forty-three".