1220323101 has 8 divisors (see below), whose sum is σ = 1664937120. Its totient is φ = 794628912.

The previous prime is 1220323067. The next prime is 1220323129. The reversal of 1220323101 is 1013230221.

1220323101 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1220323101 - 2⁶ = 1220323037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220323141) 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, 4729806 + ... + 4730063.

It is an arithmetic number, because the mean of its divisors is an integer number (208117140).

Almost surely, 2^1220323101 is an apocalyptic number.

It is an amenable number.

1220323101 is a deficient number, since it is larger than the sum of its proper divisors (444614019).

1220323101 is an equidigital number, since it uses as much as digits as its factorization.

1220323101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9459915.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1220323101 is about 34933.1232643175. The cubic root of 1220323101 is about 1068.6240505180.

Adding to 1220323101 its reverse (1013230221), we get a palindrome (2233553322).

The spelling of 1220323101 in words is "one billion, two hundred twenty million, three hundred twenty-three thousand, one hundred one".