4221321111 has 24 divisors (see below), whose sum is σ = 6985126304. Its totient is φ = 2406438720.

The previous prime is 4221321109. The next prime is 4221321127. The reversal of 4221321111 is 1111231224.

4221321111 is a `hidden beast` number, since 422 + 132 + 1 + 111 = 666.

4221321111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4221321111 - 2¹ = 4221321109 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 (4221321101) 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, 53056 + ... + 106101.

Almost surely, 2^4221321111 is an apocalyptic number.

4221321111 is a deficient number, since it is larger than the sum of its proper divisors (2763805193).

4221321111 is a wasteful number, since it uses less digits than its factorization.

4221321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159591 (or 159588 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 4221321111 is about 64971.6946908421. The cubic root of 4221321111 is about 1616.1542051273.

Adding to 4221321111 its reverse (1111231224), we get a palindrome (5332552335).

The spelling of 4221321111 in words is "four billion, two hundred twenty-one million, three hundred twenty-one thousand, one hundred eleven".