1230221130 has 16 divisors (see below), whose sum is σ = 2952530784. Its totient is φ = 328058960.

The previous prime is 1230221129. The next prime is 1230221141. The reversal of 1230221130 is 311220321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20503656 + ... + 20503715.

It is an arithmetic number, because the mean of its divisors is an integer number (184533174).

Almost surely, 2^1230221130 is an apocalyptic number.

1230221130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230221130 is an abundant number, since it is smaller than the sum of its proper divisors (1722309654).

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

1230221130 is a wasteful number, since it uses less digits than its factorization.

1230221130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41007381.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1230221130 is about 35074.5082645502. The cubic root of 1230221130 is about 1071.5054739214.

Adding to 1230221130 its reverse (311220321), we get a palindrome (1541441451).

The spelling of 1230221130 in words is "one billion, two hundred thirty million, two hundred twenty-one thousand, one hundred thirty".