111111002002122 has 16 divisors (see below), whose sum is σ = 222808341750240. Its totient is φ = 36939277709712.

The previous prime is 111111002002111. The next prime is 111111002002201. The reversal of 111111002002122 is 221200200111111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24430736953 + ... + 24430741500.

It is an arithmetic number, because the mean of its divisors is an integer number (13925521359390).

Almost surely, 2^{111111002002122} is an apocalyptic number.

111111002002122 is an abundant number, since it is smaller than the sum of its proper divisors (111697339748118).

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

111111002002122 is a wasteful number, since it uses less digits than its factorization.

111111002002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48861478837.

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

Adding to 111111002002122 its reverse (221200200111111), we get a palindrome (332311202113233).

The spelling of 111111002002122 in words is "one hundred eleven trillion, one hundred eleven billion, two million, two thousand, one hundred twenty-two".