1230055221 has 8 divisors (see below), whose sum is σ = 1640464704. Its totient is φ = 819841280.

The previous prime is 1230055219. The next prime is 1230055241. The reversal of 1230055221 is 1225500321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1230055221 - 2¹ = 1230055219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230055241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33516 + ... + 59861.

It is an arithmetic number, because the mean of its divisors is an integer number (205058088).

Almost surely, 2^1230055221 is an apocalyptic number.

It is an amenable number.

1230055221 is a deficient number, since it is larger than the sum of its proper divisors (410409483).

1230055221 is an equidigital number, since it uses as much as digits as its factorization.

1230055221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97771.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1230055221 is about 35072.1430910630. The cubic root of 1230055221 is about 1071.4573036130.

Adding to 1230055221 its reverse (1225500321), we get a palindrome (2455555542).

The spelling of 1230055221 in words is "one billion, two hundred thirty million, fifty-five thousand, two hundred twenty-one".