1221030230 has 32 divisors (see below), whose sum is σ = 2513678400. Its totient is φ = 418331520.

The previous prime is 1221030199. The next prime is 1221030257. The reversal of 1221030230 is 320301221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102800 + ... + 114060.

It is an arithmetic number, because the mean of its divisors is an integer number (78552450).

Almost surely, 2^1221030230 is an apocalyptic number.

1221030230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221030230 is an abundant number, since it is smaller than the sum of its proper divisors (1292648170).

1221030230 is a wasteful number, since it uses less digits than its factorization.

1221030230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12824.

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

The square root of 1221030230 is about 34943.2429805821. The cubic root of 1221030230 is about 1068.8304191279.

Adding to 1221030230 its reverse (320301221), we get a palindrome (1541331451).

The spelling of 1221030230 in words is "one billion, two hundred twenty-one million, thirty thousand, two hundred thirty".