1220054530 has 16 divisors (see below), whose sum is σ = 2201581944. Its totient is φ = 486803200.

The previous prime is 1220054477. The next prime is 1220054531. The reversal of 1220054530 is 354500221.

It can be written as a sum of positive squares in 4 ways, for example, as 1219895329 + 159201 = 34927^2 + 399^2 .

It is not an unprimeable number, because it can be changed into a prime (1220054531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148117 + ... + 156136.

Almost surely, 2^1220054530 is an apocalyptic number.

1220054530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220054530 is a deficient number, since it is larger than the sum of its proper divisors (981527414).

1220054530 is a wasteful number, since it uses less digits than its factorization.

1220054530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304661.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1220054530 is about 34929.2789791029. The cubic root of 1220054530 is about 1068.5456498369.

Adding to 1220054530 its reverse (354500221), we get a palindrome (1574554751).

The spelling of 1220054530 in words is "one billion, two hundred twenty million, fifty-four thousand, five hundred thirty".