1220554113313 has 4 divisors (see below), whose sum is σ = 1226027450368. Its totient is φ = 1215080776260.

The previous prime is 1220554113283. The next prime is 1220554113349. The reversal of 1220554113313 is 3133114550221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1220554113313 - 2⁵ = 1220554113281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220554110313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2736668193 + ... + 2736668638.

It is an arithmetic number, because the mean of its divisors is an integer number (306506862592).

Almost surely, 2^{1220554113313} is an apocalyptic number.

It is an amenable number.

1220554113313 is a deficient number, since it is larger than the sum of its proper divisors (5473337055).

1220554113313 is an equidigital number, since it uses as much as digits as its factorization.

1220554113313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5473337054.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 1220554113313 its reverse (3133114550221), we get a palindrome (4353668663534).

The spelling of 1220554113313 in words is "one trillion, two hundred twenty billion, five hundred fifty-four million, one hundred thirteen thousand, three hundred thirteen".