111101121021222 has 96 divisors (see below), whose sum is σ = 247951795291200. Its totient is φ = 35931120906240.

The previous prime is 111101121021217. The next prime is 111101121021229. The reversal of 111101121021222 is 222120121101111.

It is a happy number.

111101121021222 is a `hidden beast` number, since 111 + 101 + 1 + 210 + 21 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111101121021195 and 111101121021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101121021229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 330294279 + ... + 330630477.

It is an arithmetic number, because the mean of its divisors is an integer number (2582831200950).

Almost surely, 2^{111101121021222} is an apocalyptic number.

111101121021222 is an abundant number, since it is smaller than the sum of its proper divisors (136850674269978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111101121021222 is a wasteful number, since it uses less digits than its factorization.

111101121021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338718 (or 338715 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111101121021222 its reverse (222120121101111), we get a palindrome (333221242122333).

The spelling of 111101121021222 in words is "one hundred eleven trillion, one hundred one billion, one hundred twenty-one million, twenty-one thousand, two hundred twenty-two".