111012110220030 has 192 divisors, whose sum is σ = 287057065155840. Its totient is φ = 27380725316608.

The previous prime is 111012110219987. The next prime is 111012110220041. The reversal of 111012110220030 is 30022011210111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 111012110219991 and 111012110220009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6708888217 + ... + 6708904763.

It is an arithmetic number, because the mean of its divisors is an integer number (1495088881020).

Almost surely, 2^{111012110220030} is an apocalyptic number.

111012110220030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111012110220030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143528532577920).

111012110220030 is an abundant number, since it is smaller than the sum of its proper divisors (176044954935810).

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

111012110220030 is a wasteful number, since it uses less digits than its factorization.

111012110220030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20471 (or 20412 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 111012110220030 its reverse (30022011210111), we get a palindrome (141034121430141).

The spelling of 111012110220030 in words is "one hundred eleven trillion, twelve billion, one hundred ten million, two hundred twenty thousand, thirty".