1221130303230 has 64 divisors (see below), whose sum is σ = 2937302903808. Its totient is φ = 324903312000.

The previous prime is 1221130303201. The next prime is 1221130303249. The reversal of 1221130303230 is 323030311221.

It is a junction number, because it is equal to n+sod(n) for n = 1221130303197 and 1221130303206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25141749 + ... + 25190271.

It is an arithmetic number, because the mean of its divisors is an integer number (45895357872).

Almost surely, 2^{1221130303230} is an apocalyptic number.

1221130303230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221130303230 is an abundant number, since it is smaller than the sum of its proper divisors (1716172600578).

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

1221130303230 is a wasteful number, since it uses less digits than its factorization.

1221130303230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50401.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1221130303230 its reverse (323030311221), we get a palindrome (1544160614451).

The spelling of 1221130303230 in words is "one trillion, two hundred twenty-one billion, one hundred thirty million, three hundred three thousand, two hundred thirty".