1220332301 has 4 divisors (see below), whose sum is σ = 1292116572. Its totient is φ = 1148548032.

The previous prime is 1220332283. The next prime is 1220332319. The reversal of 1220332301 is 1032330221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1032330221 = 13 ⋅79410017.

It is an interprime number because it is at equal distance from previous prime (1220332283) and next prime (1220332319).

It can be written as a sum of positive squares in 2 ways, for example, as 410872900 + 809459401 = 20270^2 + 28451^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220332301 - 2¹⁴ = 1220315917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 71784253 = 1220332301 / (1 + 2 + 2 + 0 + 3 + 3 + 2 + 3 + 0 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220332301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220332381) 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, 35892110 + ... + 35892143.

It is an arithmetic number, because the mean of its divisors is an integer number (323029143).

Almost surely, 2^1220332301 is an apocalyptic number.

It is an amenable number.

1220332301 is a deficient number, since it is larger than the sum of its proper divisors (71784271).

1220332301 is an equidigital number, since it uses as much as digits as its factorization.

1220332301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71784270.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1220332301 is about 34933.2549442505. The cubic root of 1220332301 is about 1068.6267359589.

Adding to 1220332301 its reverse (1032330221), we get a palindrome (2252662522).

The spelling of 1220332301 in words is "one billion, two hundred twenty million, three hundred thirty-two thousand, three hundred one".