4021101 has 24 divisors (see below), whose sum is σ = 6726720. Its totient is φ = 2267136.

The previous prime is 4021099. The next prime is 4021151. The reversal of 4021101 is 1011204.

It is a happy number.

It is not a de Polignac number, because 4021101 - 2¹ = 4021099 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4845 + ... + 5613.

It is an arithmetic number, because the mean of its divisors is an integer number (280280).

Almost surely, 2^4021101 is an apocalyptic number.

It is an amenable number.

4021101 is a deficient number, since it is larger than the sum of its proper divisors (2705619).

4021101 is a wasteful number, since it uses less digits than its factorization.

4021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 862 counting only the distinct ones).

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

The square root of 4021101 is about 2005.2683112242. The cubic root of 4021101 is about 159.0187470479.

Adding to 4021101 its reverse (1011204), we get a palindrome (5032305).

The spelling of 4021101 in words is "four million, twenty-one thousand, one hundred one".