111121001002122 has 8 divisors (see below), whose sum is σ = 222242002004256. Its totient is φ = 37040333667372.

The previous prime is 111121001002117. The next prime is 111121001002159. The reversal of 111121001002122 is 221200100121111.

It is a happy number.

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

111121001002122 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9260083416838 + ... + 9260083416849.

It is an arithmetic number, because the mean of its divisors is an integer number (27780250250532).

Almost surely, 2^{111121001002122} is an apocalyptic number.

111121001002122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111121001002122 is a wasteful number, since it uses less digits than its factorization.

111121001002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18520166833692.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111121001002122 its reverse (221200100121111), we get a palindrome (332321101123233).

The spelling of 111121001002122 in words is "one hundred eleven trillion, one hundred twenty-one billion, one million, two thousand, one hundred twenty-two".