1223055005 has 4 divisors (see below), whose sum is σ = 1467666012. Its totient is φ = 978444000.

The previous prime is 1223054993. The next prime is 1223055079. The reversal of 1223055005 is 5005503221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5005503221 = 53 ⋅94443457.

It can be written as a sum of positive squares in 2 ways, for example, as 169468324 + 1053586681 = 13018^2 + 32459^2 .

It is not a de Polignac number, because 1223055005 - 2¹² = 1223050909 is a prime.

It is a super-3 number, since 3×1223055005³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122305496 + ... + 122305505.

It is an arithmetic number, because the mean of its divisors is an integer number (366916503).

Almost surely, 2^1223055005 is an apocalyptic number.

It is an amenable number.

1223055005 is a deficient number, since it is larger than the sum of its proper divisors (244611007).

1223055005 is an equidigital number, since it uses as much as digits as its factorization.

1223055005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244611006.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 1223055005 is about 34972.2033192077. The cubic root of 1223055005 is about 1069.4208893526.

Adding to 1223055005 its reverse (5005503221), we get a palindrome (6228558226).

The spelling of 1223055005 in words is "one billion, two hundred twenty-three million, fifty-five thousand, five".