44002121111 has 8 divisors (see below), whose sum is σ = 47389261920. Its totient is φ = 40615317792.

The previous prime is 44002121087. The next prime is 44002121113. The reversal of 44002121111 is 11112120044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44002121111 - 2³⁴ = 26822251927 is a prime.

It is a super-2 number, since 2×44002121111² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44002121111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44002121113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229766 + ... + 375228.

It is an arithmetic number, because the mean of its divisors is an integer number (5923657740).

Almost surely, 2^44002121111 is an apocalyptic number.

44002121111 is a deficient number, since it is larger than the sum of its proper divisors (3387140809).

44002121111 is a wasteful number, since it uses less digits than its factorization.

44002121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168745.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 44002121111 its reverse (11112120044), we get a palindrome (55114241155).

The spelling of 44002121111 in words is "forty-four billion, two million, one hundred twenty-one thousand, one hundred eleven".