111212031122 has 8 divisors (see below), whose sum is σ = 166838714172. Its totient is φ = 55599126400.

The previous prime is 111212031109. The next prime is 111212031131. The reversal of 111212031122 is 221130212111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 102836303761 + 8375727361 = 320681^2 + 91519^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 111212031122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3424379 + ... + 3456702.

Almost surely, 2^111212031122 is an apocalyptic number.

111212031122 is a deficient number, since it is larger than the sum of its proper divisors (55626683050).

111212031122 is an equidigital number, since it uses as much as digits as its factorization.

111212031122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6889164.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111212031122 its reverse (221130212111), we get a palindrome (332342243233).

The spelling of 111212031122 in words is "one hundred eleven billion, two hundred twelve million, thirty-one thousand, one hundred twenty-two".