111222021198 has 16 divisors (see below), whose sum is σ = 223168619520. Its totient is φ = 36953244216.

The previous prime is 111222021193. The next prime is 111222021199. The reversal of 111222021198 is 891120222111.

It is a super-2 number, since 2×111222021198² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222021193) 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, 30188718 + ... + 30192401.

It is an arithmetic number, because the mean of its divisors is an integer number (13948038720).

Almost surely, 2^111222021198 is an apocalyptic number.

111222021198 is an abundant number, since it is smaller than the sum of its proper divisors (111946598322).

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

111222021198 is a wasteful number, since it uses less digits than its factorization.

111222021198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60381431.

The product of its (nonzero) digits is 1152, while the sum is 30.

The spelling of 111222021198 in words is "one hundred eleven billion, two hundred twenty-two million, twenty-one thousand, one hundred ninety-eight".