1220113301 has 12 divisors (see below), whose sum is σ = 1373832012. Its totient is φ = 1082136000.

The previous prime is 1220113289. The next prime is 1220113303. The reversal of 1220113301 is 1033110221.

It can be written as a sum of positive squares in 2 ways, for example, as 105555076 + 1114558225 = 10274^2 + 33385^2 .

It is not a de Polignac number, because 1220113301 - 2²² = 1215918997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220113303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118010 + ... + 127931.

It is an arithmetic number, because the mean of its divisors is an integer number (114486001).

Almost surely, 2^1220113301 is an apocalyptic number.

1220113301 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1220113301 is a deficient number, since it is larger than the sum of its proper divisors (153718711).

1220113301 is a wasteful number, since it uses less digits than its factorization.

1220113301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246004 (or 245993 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1220113301 is about 34930.1202545883. The cubic root of 1220113301 is about 1068.5628071268.

Adding to 1220113301 its reverse (1033110221), we get a palindrome (2253223522).

The spelling of 1220113301 in words is "one billion, two hundred twenty million, one hundred thirteen thousand, three hundred one".