111221023342 has 16 divisors (see below), whose sum is σ = 195997887792. Its totient is φ = 46666163520.

The previous prime is 111221023337. The next prime is 111221023343. The reversal of 111221023342 is 243320122111.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111221023343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194442063 + ... + 194442634.

It is an arithmetic number, because the mean of its divisors is an integer number (12249867987).

Almost surely, 2^111221023342 is an apocalyptic number.

111221023342 is a deficient number, since it is larger than the sum of its proper divisors (84776864450).

111221023342 is a wasteful number, since it uses less digits than its factorization.

111221023342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388884723.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 111221023342 its reverse (243320122111), we get a palindrome (354541145453).

The spelling of 111221023342 in words is "one hundred eleven billion, two hundred twenty-one million, twenty-three thousand, three hundred forty-two".