2001220030 has 32 divisors (see below), whose sum is σ = 3799418400. Its totient is φ = 756830592.

The previous prime is 2001220027. The next prime is 2001220051. The reversal of 2001220030 is 300221002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2001219989 and 2001220016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86364 + ... + 107056.

It is an arithmetic number, because the mean of its divisors is an integer number (118731825).

Almost surely, 2^2001220030 is an apocalyptic number.

2001220030 is a deficient number, since it is larger than the sum of its proper divisors (1798198370).

2001220030 is a wasteful number, since it uses less digits than its factorization.

2001220030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21228.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2001220030 is about 44734.9978204984. The cubic root of 2001220030 is about 1260.1771880656.

Adding to 2001220030 its reverse (300221002), we get a palindrome (2301441032).

The spelling of 2001220030 in words is "two billion, one million, two hundred twenty thousand, thirty".