1220333130 has 24 divisors (see below), whose sum is σ = 3172866372. Its totient is φ = 325422144.

The previous prime is 1220333129. The next prime is 1220333131. The reversal of 1220333130 is 313330221.

It is an interprime number because it is at equal distance from previous prime (1220333129) and next prime (1220333131).

It can be written as a sum of positive squares in 2 ways, for example, as 1063607769 + 156725361 = 32613^2 + 12519^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1220333131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6779539 + ... + 6779718.

Almost surely, 2^1220333130 is an apocalyptic number.

1220333130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220333130 is an abundant number, since it is smaller than the sum of its proper divisors (1952533242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220333130 is a wasteful number, since it uses less digits than its factorization.

1220333130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13559270 (or 13559267 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1220333130 is about 34933.2668097331. The cubic root of 1220333130 is about 1068.6269779398.

Adding to 1220333130 its reverse (313330221), we get a palindrome (1533663351).

The spelling of 1220333130 in words is "one billion, two hundred twenty million, three hundred thirty-three thousand, one hundred thirty".