4021444113111 has 12 divisors (see below), whose sum is σ = 6009054422280. Its totient is φ = 2588515750800.

The previous prime is 4021444113073. The next prime is 4021444113143. The reversal of 4021444113111 is 1113114441204.

4021444113111 is a `hidden beast` number, since 4 + 0 + 214 + 4 + 411 + 31 + 1 + 1 = 666.

It is not a de Polignac number, because 4021444113111 - 2¹¹ = 4021444111063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021444113161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7703915665 + ... + 7703916186.

It is an arithmetic number, because the mean of its divisors is an integer number (500754535190).

Almost surely, 2^{4021444113111} is an apocalyptic number.

4021444113111 is a deficient number, since it is larger than the sum of its proper divisors (1987610309169).

4021444113111 is a wasteful number, since it uses less digits than its factorization.

4021444113111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15407831886 (or 15407831883 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 4021444113111 its reverse (1113114441204), we get a palindrome (5134558554315).

The spelling of 4021444113111 in words is "four trillion, twenty-one billion, four hundred forty-four million, one hundred thirteen thousand, one hundred eleven".