1220544052399 has 8 divisors (see below), whose sum is σ = 1455555640320. Its totient is φ = 1000694502456.

The previous prime is 1220544052391. The next prime is 1220544052421. The reversal of 1220544052399 is 9932504450221.

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 1220544052399 - 2³ = 1220544052391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220544052391) 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, 3790509319 + ... + 3790509640.

It is an arithmetic number, because the mean of its divisors is an integer number (181944455040).

Almost surely, 2^{1220544052399} is an apocalyptic number.

1220544052399 is a deficient number, since it is larger than the sum of its proper divisors (235011587921).

1220544052399 is an equidigital number, since it uses as much as digits as its factorization.

1220544052399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7581018989.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 1220544052399 in words is "one trillion, two hundred twenty billion, five hundred forty-four million, fifty-two thousand, three hundred ninety-nine".