1220232301 has 4 divisors (see below), whose sum is σ = 1223306332. Its totient is φ = 1217158272.

The previous prime is 1220232289. The next prime is 1220232311. The reversal of 1220232301 is 1032320221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 598976676 + 621255625 = 24474^2 + 24925^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220232301 - 2²⁹ = 683361389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220232311) 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, 1536420 + ... + 1537213.

It is an arithmetic number, because the mean of its divisors is an integer number (305826583).

Almost surely, 2^1220232301 is an apocalyptic number.

It is an amenable number.

1220232301 is a deficient number, since it is larger than the sum of its proper divisors (3074031).

1220232301 is an equidigital number, since it uses as much as digits as its factorization.

1220232301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3074030.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1220232301 is about 34931.8236140056. The cubic root of 1220232301 is about 1068.5975456603.

Adding to 1220232301 its reverse (1032320221), we get a palindrome (2252552522).

The spelling of 1220232301 in words is "one billion, two hundred twenty million, two hundred thirty-two thousand, three hundred one".