1221013103230 has 32 divisors (see below), whose sum is σ = 2328660252000. Its totient is φ = 459368770560.

The previous prime is 1221013103201. The next prime is 1221013103243. The reversal of 1221013103230 is 323013101221.

It is a junction number, because it is equal to n+sod(n) for n = 1221013103198 and 1221013103207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2140911 + ... + 2650570.

It is an arithmetic number, because the mean of its divisors is an integer number (72770632875).

Almost surely, 2^{1221013103230} is an apocalyptic number.

1221013103230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221013103230 is a deficient number, since it is larger than the sum of its proper divisors (1107647148770).

1221013103230 is a wasteful number, since it uses less digits than its factorization.

1221013103230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793004.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1221013103230 its reverse (323013101221), we get a palindrome (1544026204451).

The spelling of 1221013103230 in words is "one trillion, two hundred twenty-one billion, thirteen million, one hundred three thousand, two hundred thirty".