111100220122 has 8 divisors (see below), whose sum is σ = 176453290836. Its totient is φ = 52282456512.

The previous prime is 111100220047. The next prime is 111100220129. The reversal of 111100220122 is 221022001111.

It can be written as a sum of positive squares in 2 ways, for example, as 93402973161 + 17697246961 = 305619^2 + 133031^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×111100220122² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111100220129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1633826733 + ... + 1633826800.

Almost surely, 2^111100220122 is an apocalyptic number.

111100220122 is a deficient number, since it is larger than the sum of its proper divisors (65353070714).

111100220122 is a wasteful number, since it uses less digits than its factorization.

111100220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3267653552.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111100220122 its reverse (221022001111), we get a palindrome (332122221233).

The spelling of 111100220122 in words is "one hundred eleven billion, one hundred million, two hundred twenty thousand, one hundred twenty-two".