1230330221221 has 4 divisors (see below), whose sum is σ = 1237878259552. Its totient is φ = 1222782182892.

The previous prime is 1230330221177. The next prime is 1230330221233. The reversal of 1230330221221 is 1221220330321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1230330221221 - 2¹⁵ = 1230330188453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230330221192 and 1230330221201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230330221321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3774018921 + ... + 3774019246.

It is an arithmetic number, because the mean of its divisors is an integer number (309469564888).

Almost surely, 2^{1230330221221} is an apocalyptic number.

It is an amenable number.

1230330221221 is a deficient number, since it is larger than the sum of its proper divisors (7548038331).

1230330221221 is an equidigital number, since it uses as much as digits as its factorization.

1230330221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7548038330.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1230330221221 its reverse (1221220330321), we get a palindrome (2451550551542).

The spelling of 1230330221221 in words is "one trillion, two hundred thirty billion, three hundred thirty million, two hundred twenty-one thousand, two hundred twenty-one".