4221101 has 4 divisors (see below), whose sum is σ = 4244604. Its totient is φ = 4197600.

The previous prime is 4221047. The next prime is 4221109. The reversal of 4221101 is 1011224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 724201 + 3496900 = 851^2 + 1870^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221101 - 2¹⁰ = 4220077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11480 + ... + 11841.

It is an arithmetic number, because the mean of its divisors is an integer number (1061151).

Almost surely, 2^4221101 is an apocalyptic number.

It is an amenable number.

4221101 is a deficient number, since it is larger than the sum of its proper divisors (23503).

4221101 is a wasteful number, since it uses less digits than its factorization.

4221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23502.

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

The square root of 4221101 is about 2054.5318201478. The cubic root of 4221101 is about 161.6126114435.

Adding to 4221101 its reverse (1011224), we get a palindrome (5232325).

The spelling of 4221101 in words is "four million, two hundred twenty-one thousand, one hundred one".