111122210021200 has 240 divisors, whose sum is σ = 310482975496320. Its totient is φ = 37433859840000.

The previous prime is 111122210021191. The next prime is 111122210021213. The reversal of 111122210021200 is 2120012221111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35547046 + ... + 38546554.

It is an arithmetic number, because the mean of its divisors is an integer number (1293679064568).

Almost surely, 2^{111122210021200} is an apocalyptic number.

111122210021200 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 111122210021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155241487748160).

111122210021200 is an abundant number, since it is smaller than the sum of its proper divisors (199360765475120).

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

111122210021200 is a wasteful number, since it uses less digits than its factorization.

111122210021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999766 (or 2999755 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111122210021200 its reverse (2120012221111), we get a palindrome (113242222242311).

The spelling of 111122210021200 in words is "one hundred eleven trillion, one hundred twenty-two billion, two hundred ten million, twenty-one thousand, two hundred".