111022122112221 has 8 divisors (see below), whose sum is σ = 148030294134304. Its totient is φ = 74014349082480.

The previous prime is 111022122112211. The next prime is 111022122112271. The reversal of 111022122112221 is 122211221220111.

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

It is not a de Polignac number, because 111022122112221 - 2⁵ = 111022122112189 is a prime.

It is a super-2 number, since 2×111022122112221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111022122112211) 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, 99098215 + ... + 100212276.

It is an arithmetic number, because the mean of its divisors is an integer number (18503786766788).

Almost surely, 2^{111022122112221} is an apocalyptic number.

It is an amenable number.

111022122112221 is a deficient number, since it is larger than the sum of its proper divisors (37008172022083).

111022122112221 is a wasteful number, since it uses less digits than its factorization.

111022122112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199496171.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 111022122112221 its reverse (122211221220111), we get a palindrome (233233343332332).

The spelling of 111022122112221 in words is "one hundred eleven trillion, twenty-two billion, one hundred twenty-two million, one hundred twelve thousand, two hundred twenty-one".