111212111100122 has 8 divisors (see below), whose sum is σ = 169103347015476. Its totient is φ = 54844328761632.

The previous prime is 111212111100121. The next prime is 111212111100161. The reversal of 111212111100122 is 221001111212111.

It can be written as a sum of positive squares in 2 ways, for example, as 109699208640121 + 1512902460001 = 10473739^2 + 1230001^2 .

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

It is a super-4 number, since 4×111212111100122⁴ (a number of 57 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111212111100122.

It is not an unprimeable number, because it can be changed into a prime (111212111100121) 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, 380863394033 + ... + 380863394324.

Almost surely, 2^{111212111100122} is an apocalyptic number.

111212111100122 is a deficient number, since it is larger than the sum of its proper divisors (57891235915354).

111212111100122 is an equidigital number, since it uses as much as digits as its factorization.

111212111100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761726788432.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111212111100122 its reverse (221001111212111), we get a palindrome (332213222312233).

The spelling of 111212111100122 in words is "one hundred eleven trillion, two hundred twelve billion, one hundred eleven million, one hundred thousand, one hundred twenty-two".