1220312030 has 16 divisors (see below), whose sum is σ = 2510356320. Its totient is φ = 418392672.

The previous prime is 1220312017. The next prime is 1220312033. The reversal of 1220312030 is 302130221.

It is a happy number.

It is a super-2 number, since 2×1220312030² = 2978322901125441800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1220311996 and 1220312014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220312033) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8716445 + ... + 8716584.

It is an arithmetic number, because the mean of its divisors is an integer number (156897270).

Almost surely, 2^1220312030 is an apocalyptic number.

1220312030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220312030 is an abundant number, since it is smaller than the sum of its proper divisors (1290044290).

1220312030 is a wasteful number, since it uses less digits than its factorization.

1220312030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17433043.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1220312030 is about 34932.9648040357. The cubic root of 1220312030 is about 1068.6208189223.

Adding to 1220312030 its reverse (302130221), we get a palindrome (1522442251).

The spelling of 1220312030 in words is "one billion, two hundred twenty million, three hundred twelve thousand, thirty".