4211152021 has 2 divisors, whose sum is σ = 4211152022. Its totient is φ = 4211152020.

The previous prime is 4211152009. The next prime is 4211152051. The reversal of 4211152021 is 1202511124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4191915025 + 19236996 = 64745^2 + 4386^2 .

It is a cyclic number.

It is not a de Polignac number, because 4211152021 - 2¹³ = 4211143829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4211152021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4211152051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2105576010 + 2105576011.

It is an arithmetic number, because the mean of its divisors is an integer number (2105576011).

Almost surely, 2^4211152021 is an apocalyptic number.

It is an amenable number.

4211152021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4211152021 is an equidigital number, since it uses as much as digits as its factorization.

4211152021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 4211152021 is about 64893.3896556498. The cubic root of 4211152021 is about 1614.8553990673.

Adding to 4211152021 its reverse (1202511124), we get a palindrome (5413663145).

The spelling of 4211152021 in words is "four billion, two hundred eleven million, one hundred fifty-two thousand, twenty-one".