1220030231 has 16 divisors (see below), whose sum is σ = 1404364800. Its totient is φ = 1038235968.

The previous prime is 1220030221. The next prime is 1220030233. The reversal of 1220030231 is 1320300221.

It is a happy number.

It is not a de Polignac number, because 1220030231 - 2³⁰ = 146288407 is a prime.

It is a super-2 number, since 2×1220030231² = 2976947529107826722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220030233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 683366 + ... + 685148.

It is an arithmetic number, because the mean of its divisors is an integer number (87772800).

Almost surely, 2^1220030231 is an apocalyptic number.

1220030231 is a deficient number, since it is larger than the sum of its proper divisors (184334569).

1220030231 is a wasteful number, since it uses less digits than its factorization.

1220030231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438.

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

The square root of 1220030231 is about 34928.9311459712. The cubic root of 1220030231 is about 1068.5385559564.

Adding to 1220030231 its reverse (1320300221), we get a palindrome (2540330452).

The spelling of 1220030231 in words is "one billion, two hundred twenty million, thirty thousand, two hundred thirty-one".