4442121111 has 16 divisors (see below), whose sum is σ = 5991602400. Its totient is φ = 2927106048.

The previous prime is 4442121109. The next prime is 4442121113. The reversal of 4442121111 is 1111212444.

It is an interprime number because it is at equal distance from previous prime (4442121109) and next prime (4442121113).

It is not a de Polignac number, because 4442121111 - 2¹ = 4442121109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4442121113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225985 + ... + 244853.

It is an arithmetic number, because the mean of its divisors is an integer number (374475150).

Almost surely, 2^4442121111 is an apocalyptic number.

4442121111 is a deficient number, since it is larger than the sum of its proper divisors (1549481289).

4442121111 is a wasteful number, since it uses less digits than its factorization.

4442121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19778.

The product of its digits is 256, while the sum is 21.

The square root of 4442121111 is about 66649.2393880080. The cubic root of 4442121111 is about 1643.8548413016.

Adding to 4442121111 its reverse (1111212444), we get a palindrome (5553333555).

The spelling of 4442121111 in words is "four billion, four hundred forty-two million, one hundred twenty-one thousand, one hundred eleven".