111111220020222 has 48 divisors (see below), whose sum is σ = 243805986719568. Its totient is φ = 36566135963520.

The previous prime is 111111220020211. The next prime is 111111220020223. The reversal of 111111220020222 is 222020022111111.

111111220020222 is a `hidden beast` number, since 1 + 111 + 112 + 200 + 20 + 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 = 111111220020195 and 111111220020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111220020223) 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, 22895973 + ... + 27321200.

It is an arithmetic number, because the mean of its divisors is an integer number (5079291389991).

Almost surely, 2^{111111220020222} is an apocalyptic number.

111111220020222 is an abundant number, since it is smaller than the sum of its proper divisors (132694766699346).

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

111111220020222 is a wasteful number, since it uses less digits than its factorization.

111111220020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50218745 (or 50218742 counting only the distinct ones).

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

Adding to 111111220020222 its reverse (222020022111111), we get a palindrome (333131242131333).

The spelling of 111111220020222 in words is "one hundred eleven trillion, one hundred eleven billion, two hundred twenty million, twenty thousand, two hundred twenty-two".