4213121201 has 2 divisors, whose sum is σ = 4213121202. Its totient is φ = 4213121200.

The previous prime is 4213121179. The next prime is 4213121243. The reversal of 4213121201 is 1021213124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4205392801 + 7728400 = 64849^2 + 2780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4213121201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4213121201.

It is not a weakly prime, because it can be changed into another prime (4213121281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2106560600 + 2106560601.

It is an arithmetic number, because the mean of its divisors is an integer number (2106560601).

Almost surely, 2^4213121201 is an apocalyptic number.

It is an amenable number.

4213121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

4213121201 is an equidigital number, since it uses as much as digits as its factorization.

4213121201 is an odious number, because the sum of its binary digits is odd.

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

The square root of 4213121201 is about 64908.5603060182. The cubic root of 4213121201 is about 1615.1070677642.

Adding to 4213121201 its reverse (1021213124), we get a palindrome (5234334325).

The spelling of 4213121201 in words is "four billion, two hundred thirteen million, one hundred twenty-one thousand, two hundred one".