3201222113 has 4 divisors (see below), whose sum is σ = 3208826388. Its totient is φ = 3193617840.

The previous prime is 3201222109. The next prime is 3201222131. The reversal of 3201222113 is 3112221023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3112221023 = 829 ⋅3754187.

It can be written as a sum of positive squares in 2 ways, for example, as 802475584 + 2398746529 = 28328^2 + 48977^2 .

It is a cyclic number.

It is not a de Polignac number, because 3201222113 - 2² = 3201222109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3201222091 and 3201222100.

It is not an unprimeable number, because it can be changed into a prime (3201222173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3801506 + ... + 3802347.

It is an arithmetic number, because the mean of its divisors is an integer number (802206597).

Almost surely, 2^3201222113 is an apocalyptic number.

It is an amenable number.

3201222113 is a deficient number, since it is larger than the sum of its proper divisors (7604275).

3201222113 is an equidigital number, since it uses as much as digits as its factorization.

3201222113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7604274.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3201222113 is about 56579.3435186376. The cubic root of 3201222113 is about 1473.8001715291.

Adding to 3201222113 its reverse (3112221023), we get a palindrome (6313443136).

The spelling of 3201222113 in words is "three billion, two hundred one million, two hundred twenty-two thousand, one hundred thirteen".