4001211 has 8 divisors (see below), whose sum is σ = 5927760. Its totient is φ = 2667456.

The previous prime is 4001197. The next prime is 4001213. The reversal of 4001211 is 1121004.

It is a happy number.

It is not a de Polignac number, because 4001211 - 2⁶ = 4001147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 4001193 and 4001202.

It is not an unprimeable number, because it can be changed into a prime (4001213) 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, 74070 + ... + 74123.

It is an arithmetic number, because the mean of its divisors is an integer number (740970).

Almost surely, 2^4001211 is an apocalyptic number.

4001211 is a deficient number, since it is larger than the sum of its proper divisors (1926549).

4001211 is a wasteful number, since it uses less digits than its factorization.

4001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148202 (or 148196 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 4001211 is about 2000.3027270891. The cubic root of 4001211 is about 158.7561231027.

Adding to 4001211 its reverse (1121004), we get a palindrome (5122215).

The spelling of 4001211 in words is "four million, one thousand, two hundred eleven".