111012111210 has 512 divisors, whose sum is σ = 375072768000. Its totient is φ = 20707384320.

The previous prime is 111012111209. The next prime is 111012111233. The reversal of 111012111210 is 12111210111.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 54443371 + ... + 54445409.

It is an arithmetic number, because the mean of its divisors is an integer number (732564000).

Almost surely, 2^111012111210 is an apocalyptic number.

111012111210 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 111012111210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187536384000).

111012111210 is an abundant number, since it is smaller than the sum of its proper divisors (264060656790).

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

111012111210 is a wasteful number, since it uses less digits than its factorization.

111012111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131 (or 2117 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111012111210 its reverse (12111210111), we get a palindrome (123123321321).

It can be divided in two parts, 111012 and 111210, that added together give a palindrome (222222).

The spelling of 111012111210 in words is "one hundred eleven billion, twelve million, one hundred eleven thousand, two hundred ten".