1220324212443 has 8 divisors (see below), whose sum is σ = 1859541657088. Its totient is φ = 697328121384.

The previous prime is 1220324212441. The next prime is 1220324212447. The reversal of 1220324212443 is 3442124230221.

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

It is not a de Polignac number, because 1220324212443 - 2¹ = 1220324212441 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 1220324212443.

It is not an unprimeable number, because it can be changed into a prime (1220324212441) 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, 29055338371 + ... + 29055338412.

It is an arithmetic number, because the mean of its divisors is an integer number (232442707136).

Almost surely, 2^{1220324212443} is an apocalyptic number.

1220324212443 is a deficient number, since it is larger than the sum of its proper divisors (639217444645).

1220324212443 is an equidigital number, since it uses as much as digits as its factorization.

1220324212443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58110676793.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1220324212443 its reverse (3442124230221), we get a palindrome (4662448442664).

The spelling of 1220324212443 in words is "one trillion, two hundred twenty billion, three hundred twenty-four million, two hundred twelve thousand, four hundred forty-three".