111222110212000 has 192 divisors, whose sum is σ = 277123776497568. Its totient is φ = 43865548800000.

The previous prime is 111222110211959. The next prime is 111222110212007. The reversal of 111222110212000 is 212011222111.

It can be written as a sum of positive squares in 16 ways, for example, as 30083162675344 + 81138947536656 = 5484812^2 + 9007716^2 .

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

It is not an unprimeable number, because it can be changed into a prime (111222110212007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96792834 + ... + 97935166.

Almost surely, 2^{111222110212000} is an apocalyptic number.

111222110212000 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 111222110212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138561888248784).

111222110212000 is an abundant number, since it is smaller than the sum of its proper divisors (165901666285568).

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

111222110212000 is a wasteful number, since it uses less digits than its factorization.

111222110212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142700 (or 1142682 counting only the distinct ones).

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

Adding to 111222110212000 its reverse (212011222111), we get a palindrome (111434121434111).

The spelling of 111222110212000 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred ten million, two hundred twelve thousand".