111020002002122 has 16 divisors (see below), whose sum is σ = 177509280745800. Its totient is φ = 51894071205888.

The previous prime is 111020002002113. The next prime is 111020002002127. The reversal of 111020002002122 is 221200200020111.

It can be written as a sum of positive squares in 4 ways, for example, as 96307706695201 + 14712295306921 = 9813649^2 + 3835661^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111020002002097 and 111020002002106.

It is not an unprimeable number, because it can be changed into a prime (111020002002127) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10957357943 + ... + 10957368074.

Almost surely, 2^{111020002002122} is an apocalyptic number.

111020002002122 is a deficient number, since it is larger than the sum of its proper divisors (66489278743678).

111020002002122 is a wasteful number, since it uses less digits than its factorization.

111020002002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21914726185.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 111020002002122 its reverse (221200200020111), we get a palindrome (332220202022233).

The spelling of 111020002002122 in words is "one hundred eleven trillion, twenty billion, two million, two thousand, one hundred twenty-two".