111241242200 has 96 divisors (see below), whose sum is σ = 283273744320. Its totient is φ = 40290000000.

The previous prime is 111241242179. The next prime is 111241242221. The reversal of 111241242200 is 2242142111.

It is an interprime number because it is at equal distance from previous prime (111241242179) and next prime (111241242221).

It is a super-2 number, since 2×111241242200² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451475 + ... + 652925.

It is an arithmetic number, because the mean of its divisors is an integer number (2950768170).

Almost surely, 2^111241242200 is an apocalyptic number.

111241242200 is a gapful number since it is divisible by the number (10) 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 111241242200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141636872160).

111241242200 is an abundant number, since it is smaller than the sum of its proper divisors (172032502120).

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

111241242200 is a wasteful number, since it uses less digits than its factorization.

111241242200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201729 (or 201720 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 111241242200 its reverse (2242142111), we get a palindrome (113483384311).

The spelling of 111241242200 in words is "one hundred eleven billion, two hundred forty-one million, two hundred forty-two thousand, two hundred".