111211011012122 has 8 divisors (see below), whose sum is σ = 190647447449376. Its totient is φ = 47661861862332.

The previous prime is 111211011012109. The next prime is 111211011012131. The reversal of 111211011012122 is 221210110112111.

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 111211011012122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3971821821848 + ... + 3971821821875.

It is an arithmetic number, because the mean of its divisors is an integer number (23830930931172).

Almost surely, 2^{111211011012122} is an apocalyptic number.

111211011012122 is a deficient number, since it is larger than the sum of its proper divisors (79436436437254).

111211011012122 is an equidigital number, since it uses as much as digits as its factorization.

111211011012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7943643643732.

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

Adding to 111211011012122 its reverse (221210110112111), we get a palindrome (332421121124233).

The spelling of 111211011012122 in words is "one hundred eleven trillion, two hundred eleven billion, eleven million, twelve thousand, one hundred twenty-two".