111122002012 has 48 divisors (see below), whose sum is σ = 228157396992. Its totient is φ = 46361589120.

The previous prime is 111122001997. The next prime is 111122002027. The reversal of 111122002012 is 210200221111.

It is an interprime number because it is at equal distance from previous prime (111122001997) and next prime (111122002027).

It is a junction number, because it is equal to n+sod(n) for n = 111122001983 and 111122002001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426993 + ... + 636055.

It is an arithmetic number, because the mean of its divisors is an integer number (4753279104).

Almost surely, 2^111122002012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111122002012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114078698496).

111122002012 is an abundant number, since it is smaller than the sum of its proper divisors (117035394980).

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

111122002012 is a wasteful number, since it uses less digits than its factorization.

111122002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209578 (or 209576 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111122002012 its reverse (210200221111), we get a palindrome (321322223123).

The spelling of 111122002012 in words is "one hundred eleven billion, one hundred twenty-two million, two thousand, twelve".