111012020211222 has 144 divisors (see below), whose sum is σ = 260752865918688. Its totient is φ = 34118016791040.

The previous prime is 111012020211203. The next prime is 111012020211259. The reversal of 111012020211222 is 222112020210111.

111012020211222 is a `hidden beast` number, since 1 + 110 + 120 + 2 + 0 + 211 + 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 = 111012020211195 and 111012020211204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 12584965572 + ... + 12584974392.

It is an arithmetic number, because the mean of its divisors is an integer number (1810783791102).

Almost surely, 2^{111012020211222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111012020211222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130376432959344).

111012020211222 is an abundant number, since it is smaller than the sum of its proper divisors (149740845707466).

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

111012020211222 is a wasteful number, since it uses less digits than its factorization.

111012020211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13175 (or 13159 counting only the distinct ones).

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

Adding to 111012020211222 its reverse (222112020210111), we get a palindrome (333124040421333).

The spelling of 111012020211222 in words is "one hundred eleven trillion, twelve billion, twenty million, two hundred eleven thousand, two hundred twenty-two".