1220130205 has 16 divisors (see below), whose sum is σ = 1771752960. Its totient is φ = 787444992.

The previous prime is 1220130187. The next prime is 1220130217. The reversal of 1220130205 is 5020310221.

It is a cyclic number.

It is not a de Polignac number, because 1220130205 - 2⁵ = 1220130173 is a prime.

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, 1024725 + ... + 1025914.

It is an arithmetic number, because the mean of its divisors is an integer number (110734560).

Almost surely, 2^1220130205 is an apocalyptic number.

It is an amenable number.

1220130205 is a deficient number, since it is larger than the sum of its proper divisors (551622755).

1220130205 is a wasteful number, since it uses less digits than its factorization.

1220130205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050668.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1220130205 is about 34930.3622225708. The cubic root of 1220130205 is about 1068.5677418878.

Adding to 1220130205 its reverse (5020310221), we get a palindrome (6240440426).

The spelling of 1220130205 in words is "one billion, two hundred twenty million, one hundred thirty thousand, two hundred five".