111012111210100 has 18 divisors (see below), whose sum is σ = 240896281326134. Its totient is φ = 44404844484000.

The previous prime is 111012111210083. The next prime is 111012111210103. The reversal of 111012111210100 is 1012111210111.

It can be written as a sum of positive squares in 3 ways, for example, as 409912379536 + 110602198830564 = 640244^2 + 10516758^2 .

It is a super-2 number, since 2×111012111210100² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012111210103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555060555951 + ... + 555060556150.

Almost surely, 2^{111012111210100} is an apocalyptic number.

111012111210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111012111210100 is an abundant number, since it is smaller than the sum of its proper divisors (129884170116034).

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

111012111210100 is a wasteful number, since it uses less digits than its factorization.

111012111210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110121112115 (or 1110121112108 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111012111210100 its reverse (1012111210111), we get a palindrome (112024222420211).

The spelling of 111012111210100 in words is "one hundred eleven trillion, twelve billion, one hundred eleven million, two hundred ten thousand, one hundred".