111011220214421 has 8 divisors (see below), whose sum is σ = 120623397177600. Its totient is φ = 101775991367520.

The previous prime is 111011220214397. The next prime is 111011220214487. The reversal of 111011220214421 is 124412022110111.

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 111011220214421 - 2²⁶ = 111011153105557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111011220264421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94237028456 + ... + 94237029633.

It is an arithmetic number, because the mean of its divisors is an integer number (15077924647200).

Almost surely, 2^{111011220214421} is an apocalyptic number.

It is an amenable number.

111011220214421 is a deficient number, since it is larger than the sum of its proper divisors (9612176963179).

111011220214421 is a wasteful number, since it uses less digits than its factorization.

111011220214421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188474058139.

The product of its (nonzero) digits is 256, while the sum is 23.

Adding to 111011220214421 its reverse (124412022110111), we get a palindrome (235423242324532).

The spelling of 111011220214421 in words is "one hundred eleven trillion, eleven billion, two hundred twenty million, two hundred fourteen thousand, four hundred twenty-one".