111414444021 has 12 divisors (see below), whose sum is σ = 161019130272. Its totient is φ = 74236070376.

The previous prime is 111414443999. The next prime is 111414444047. The reversal of 111414444021 is 120444414111.

111414444021 is a `hidden beast` number, since 1 + 114 + 144 + 4 + 402 + 1 = 666.

It is not a de Polignac number, because 111414444021 - 2¹⁹ = 111413919733 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111414444091) 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, 3334591 + ... + 3367836.

It is an arithmetic number, because the mean of its divisors is an integer number (13418260856).

Almost surely, 2^111414444021 is an apocalyptic number.

It is an amenable number.

111414444021 is a deficient number, since it is larger than the sum of its proper divisors (49604686251).

111414444021 is a wasteful number, since it uses less digits than its factorization.

111414444021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6704280 (or 6704277 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

Adding to 111414444021 its reverse (120444414111), we get a palindrome (231858858132).

The spelling of 111414444021 in words is "one hundred eleven billion, four hundred fourteen million, four hundred forty-four thousand, twenty-one".