1321412201 has 8 divisors (see below), whose sum is σ = 1345280040. Its totient is φ = 1297700352.

The previous prime is 1321412177. The next prime is 1321412219. The reversal of 1321412201 is 1022141231.

It can be written as a sum of positive squares in 4 ways, for example, as 172134400 + 1149277801 = 13120^2 + 33901^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1321412201 - 2⁶ = 1321412137 is a prime.

It is a super-2 number, since 2×1321412201² = 3492260409903328802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321412201.

It is not an unprimeable number, because it can be changed into a prime (1321412251) 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, 21836 + ... + 55853.

It is an arithmetic number, because the mean of its divisors is an integer number (168160005).

Almost surely, 2^1321412201 is an apocalyptic number.

It is an amenable number.

1321412201 is a deficient number, since it is larger than the sum of its proper divisors (23867839).

1321412201 is an equidigital number, since it uses as much as digits as its factorization.

1321412201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77995.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1321412201 is about 36351.2338305043. The cubic root of 1321412201 is about 1097.3523654720.

Adding to 1321412201 its reverse (1022141231), we get a palindrome (2343553432).

The spelling of 1321412201 in words is "one billion, three hundred twenty-one million, four hundred twelve thousand, two hundred one".