1220341055 has 4 divisors (see below), whose sum is σ = 1464409272. Its totient is φ = 976272840.

The previous prime is 1220341049. The next prime is 1220341091. The reversal of 1220341055 is 5501430221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1220341055 - 2²⁴ = 1203563839 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 1220341055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122034101 + ... + 122034110.

It is an arithmetic number, because the mean of its divisors is an integer number (366102318).

Almost surely, 2^1220341055 is an apocalyptic number.

1220341055 is a deficient number, since it is larger than the sum of its proper divisors (244068217).

1220341055 is an equidigital number, since it uses as much as digits as its factorization.

1220341055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244068216.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1220341055 is about 34933.3802401085. The cubic root of 1220341055 is about 1068.6292912017.

Adding to 1220341055 its reverse (5501430221), we get a palindrome (6721771276).

The spelling of 1220341055 in words is "one billion, two hundred twenty million, three hundred forty-one thousand, fifty-five".