4210213121 has 2 divisors, whose sum is σ = 4210213122. Its totient is φ = 4210213120.

The previous prime is 4210213109. The next prime is 4210213129. The reversal of 4210213121 is 1213120124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3283863025 + 926350096 = 57305^2 + 30436^2 .

It is a cyclic number.

It is not a de Polignac number, because 4210213121 - 2⁶ = 4210213057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4210213121.

It is not a weakly prime, because it can be changed into another prime (4210213129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2105106560 + 2105106561.

It is an arithmetic number, because the mean of its divisors is an integer number (2105106561).

Almost surely, 2^4210213121 is an apocalyptic number.

It is an amenable number.

4210213121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4210213121 is an equidigital number, since it uses as much as digits as its factorization.

4210213121 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 4210213121 is about 64886.1550794929. The cubic root of 4210213121 is about 1614.7353764526.

Adding to 4210213121 its reverse (1213120124), we get a palindrome (5423333245).

The spelling of 4210213121 in words is "four billion, two hundred ten million, two hundred thirteen thousand, one hundred twenty-one".