1220124005 has 8 divisors (see below), whose sum is σ = 1464790392. Its totient is φ = 975671488.

The previous prime is 1220123999. The next prime is 1220124041. The reversal of 1220124005 is 5004210221.

It can be written as a sum of positive squares in 4 ways, for example, as 26697889 + 1193426116 = 5167^2 + 34546^2 .

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 1220124005 - 2¹⁴ = 1220107621 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 40634 + ... + 63963.

It is an arithmetic number, because the mean of its divisors is an integer number (183098799).

Almost surely, 2^1220124005 is an apocalyptic number.

It is an amenable number.

1220124005 is a deficient number, since it is larger than the sum of its proper divisors (244666387).

1220124005 is a wasteful number, since it uses less digits than its factorization.

1220124005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106935.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1220124005 is about 34930.2734744519. The cubic root of 1220124005 is about 1068.5659319358.

Adding to 1220124005 its reverse (5004210221), we get a palindrome (6224334226).

The spelling of 1220124005 in words is "one billion, two hundred twenty million, one hundred twenty-four thousand, five".