111102220011021 has 16 divisors (see below), whose sum is σ = 154891822579200. Its totient is φ = 70703499592880.

The previous prime is 111102220010917. The next prime is 111102220011023. The reversal of 111102220011021 is 120110022201111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111102220011021 - 2¹⁹ = 111102219486733 is a prime.

It is a super-2 number, since 2×111102220011021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102220011023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1639657671 + ... + 1639725428.

It is an arithmetic number, because the mean of its divisors is an integer number (9680738911200).

Almost surely, 2^{111102220011021} is an apocalyptic number.

It is an amenable number.

111102220011021 is a deficient number, since it is larger than the sum of its proper divisors (43789602568179).

111102220011021 is a wasteful number, since it uses less digits than its factorization.

111102220011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279383616.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111102220011021 its reverse (120110022201111), we get a palindrome (231212242212132).

The spelling of 111102220011021 in words is "one hundred eleven trillion, one hundred two billion, two hundred twenty million, eleven thousand, twenty-one".