4021211 has 2 divisors, whose sum is σ = 4021212. Its totient is φ = 4021210.

The previous prime is 4021207. The next prime is 4021229. The reversal of 4021211 is 1121204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4021211 - 2² = 4021207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4021192 and 4021201.

It is not a weakly prime, because it can be changed into another prime (4021261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010605 + 2010606.

It is an arithmetic number, because the mean of its divisors is an integer number (2010606).

Almost surely, 2^4021211 is an apocalyptic number.

4021211 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021211 is an equidigital number, since it uses as much as digits as its factorization.

4021211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 4021211 is about 2005.2957387877. The cubic root of 4021211 is about 159.0201970573.

Adding to 4021211 its reverse (1121204), we get a palindrome (5142415).

The spelling of 4021211 in words is "four million, twenty-one thousand, two hundred eleven".