111001212120222 has 48 divisors (see below), whose sum is σ = 247071871589712. Its totient is φ = 35990311029120.

The previous prime is 111001212120203. The next prime is 111001212120229. The reversal of 111001212120222 is 222021212100111.

111001212120222 is a `hidden beast` number, since 1 + 110 + 0 + 1 + 212 + 120 + 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 = 111001212120195 and 111001212120204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111001212120229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20958103 + ... + 25714674.

It is an arithmetic number, because the mean of its divisors is an integer number (5147330658119).

Almost surely, 2^{111001212120222} is an apocalyptic number.

111001212120222 is an abundant number, since it is smaller than the sum of its proper divisors (136070659469490).

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

111001212120222 is a wasteful number, since it uses less digits than its factorization.

111001212120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46676393 (or 46676390 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111001212120222 its reverse (222021212100111), we get a palindrome (333022424220333).

The spelling of 111001212120222 in words is "one hundred eleven trillion, one billion, two hundred twelve million, one hundred twenty thousand, two hundred twenty-two".