111101021220222 has 32 divisors (see below), whose sum is σ = 269335809020160. Its totient is φ = 33666976127160.

The previous prime is 111101021220197. The next prime is 111101021220269. The reversal of 111101021220222 is 222022120101111.

111101021220222 is a `hidden beast` number, since 11 + 110 + 102 + 1 + 220 + 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 = 111101021220195 and 111101021220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93519377538 + ... + 93519378725.

It is an arithmetic number, because the mean of its divisors is an integer number (8416744031880).

Almost surely, 2^{111101021220222} is an apocalyptic number.

111101021220222 is an abundant number, since it is smaller than the sum of its proper divisors (158234787799938).

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

111101021220222 is a wasteful number, since it uses less digits than its factorization.

111101021220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187038756285 (or 187038756279 counting only the distinct ones).

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

Adding to 111101021220222 its reverse (222022120101111), we get a palindrome (333123141321333).

The spelling of 111101021220222 in words is "one hundred eleven trillion, one hundred one billion, twenty-one million, two hundred twenty thousand, two hundred twenty-two".