111216622321 has 8 divisors (see below), whose sum is σ = 127113792704. Its totient is φ = 95321722320.

The previous prime is 111216622313. The next prime is 111216622327. The reversal of 111216622321 is 123226612111.

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 111216622321 - 2³ = 111216622313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111216622321.

It is not an unprimeable number, because it can be changed into a prime (111216622327) 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, 461295 + ... + 659716.

It is an arithmetic number, because the mean of its divisors is an integer number (15889224088).

Almost surely, 2^111216622321 is an apocalyptic number.

It is an amenable number.

111216622321 is a deficient number, since it is larger than the sum of its proper divisors (15897170383).

111216622321 is a wasteful number, since it uses less digits than its factorization.

111216622321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135191.

The product of its digits is 1728, while the sum is 28.

The spelling of 111216622321 in words is "one hundred eleven billion, two hundred sixteen million, six hundred twenty-two thousand, three hundred twenty-one".