111222012102 has 16 divisors (see below), whose sum is σ = 229619638272. Its totient is φ = 35878068360.

The previous prime is 111222012059. The next prime is 111222012107. The reversal of 111222012102 is 201210222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222012107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298983718 + ... + 298984089.

It is an arithmetic number, because the mean of its divisors is an integer number (14351227392).

Almost surely, 2^111222012102 is an apocalyptic number.

111222012102 is an abundant number, since it is smaller than the sum of its proper divisors (118397626170).

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

111222012102 is a wasteful number, since it uses less digits than its factorization.

111222012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597967843.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111222012102 its reverse (201210222111), we get a palindrome (312432234213).

The spelling of 111222012102 in words is "one hundred eleven billion, two hundred twenty-two million, twelve thousand, one hundred two".