111022021122012 has 288 divisors, whose sum is σ = 376832630254080. Its totient is φ = 26616503370240.

The previous prime is 111022021121989. The next prime is 111022021122013. The reversal of 111022021122012 is 210221120220111.

111022021122012 is a `hidden beast` number, since 1 + 1 + 1 + 0 + 220 + 211 + 220 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111022021122013) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 467592558 + ... + 467829930.

Almost surely, 2^{111022021122012} is an apocalyptic number.

111022021122012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111022021122012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188416315127040).

111022021122012 is an abundant number, since it is smaller than the sum of its proper divisors (265810609132068).

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

111022021122012 is a wasteful number, since it uses less digits than its factorization.

111022021122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250393 (or 250388 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111022021122012 its reverse (210221120220111), we get a palindrome (321243141342123).

The spelling of 111022021122012 in words is "one hundred eleven trillion, twenty-two billion, twenty-one million, one hundred twenty-two thousand, twelve".