1001220030 has 24 divisors (see below), whose sum is σ = 2603172312. Its totient is φ = 266991984.

The previous prime is 1001220019. The next prime is 1001220043. The reversal of 1001220030 is 300221001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1001219994 and 1001220021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5562244 + ... + 5562423.

It is an arithmetic number, because the mean of its divisors is an integer number (108465513).

Almost surely, 2^1001220030 is an apocalyptic number.

1001220030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001220030 is an abundant number, since it is smaller than the sum of its proper divisors (1601952282).

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

1001220030 is a wasteful number, since it uses less digits than its factorization.

1001220030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11124680 (or 11124677 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1001220030 is about 31642.0610896319. The cubic root of 1001220030 is about 1000.4065113928.

Adding to 1001220030 its reverse (300221001), we get a palindrome (1301441031).

The spelling of 1001220030 in words is "one billion, one million, two hundred twenty thousand, thirty".