1220320030 has 32 divisors (see below), whose sum is σ = 2319593760. Its totient is φ = 460955520.

The previous prime is 1220320021. The next prime is 1220320081. The reversal of 1220320030 is 300230221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50100 + ... + 70360.

It is an arithmetic number, because the mean of its divisors is an integer number (72487305).

Almost surely, 2^1220320030 is an apocalyptic number.

1220320030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220320030 is a deficient number, since it is larger than the sum of its proper divisors (1099273730).

1220320030 is a wasteful number, since it uses less digits than its factorization.

1220320030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20604.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1220320030 is about 34933.0793088728. The cubic root of 1220320030 is about 1068.6231541032.

Adding to 1220320030 its reverse (300230221), we get a palindrome (1520550251).

The spelling of 1220320030 in words is "one billion, two hundred twenty million, three hundred twenty thousand, thirty".