1220122303 has 4 divisors (see below), whose sum is σ = 1246082400. Its totient is φ = 1194162208.

The previous prime is 1220122289. The next prime is 1220122313. The reversal of 1220122303 is 3032210221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3032210221 = 23 ⋅131835227.

It is a cyclic number.

It is not a de Polignac number, because 1220122303 - 2²⁹ = 683251391 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 (1220122313) 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, 12979978 + ... + 12980071.

It is an arithmetic number, because the mean of its divisors is an integer number (311520600).

Almost surely, 2^1220122303 is an apocalyptic number.

1220122303 is a deficient number, since it is larger than the sum of its proper divisors (25960097).

1220122303 is an equidigital number, since it uses as much as digits as its factorization.

1220122303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25960096.

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

The square root of 1220122303 is about 34930.2491116224. The cubic root of 1220122303 is about 1068.5654350737.

Adding to 1220122303 its reverse (3032210221), we get a palindrome (4252332524).

The spelling of 1220122303 in words is "one billion, two hundred twenty million, one hundred twenty-two thousand, three hundred three".