32220113 has 4 divisors (see below), whose sum is σ = 32306868. Its totient is φ = 32133360.

The previous prime is 32220109. The next prime is 32220121. The reversal of 32220113 is 31102223.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31102223 = 139 ⋅223757.

It can be written as a sum of positive squares in 2 ways, for example, as 15311569 + 16908544 = 3913^2 + 4112^2 .

It is a cyclic number.

It is not a de Polignac number, because 32220113 - 2² = 32220109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32220163) 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, 42818 + ... + 43563.

It is an arithmetic number, because the mean of its divisors is an integer number (8076717).

Almost surely, 2^32220113 is an apocalyptic number.

It is an amenable number.

32220113 is a deficient number, since it is larger than the sum of its proper divisors (86755).

32220113 is an equidigital number, since it uses as much as digits as its factorization.

32220113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86754.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 32220113 is about 5676.2763322446. The cubic root of 32220113 is about 318.2064802232.

Adding to 32220113 its reverse (31102223), we get a palindrome (63322336).

The spelling of 32220113 in words is "thirty-two million, two hundred twenty thousand, one hundred thirteen".