111222022212000 has 2304 divisors, whose sum is σ = 478733642150400. Its totient is φ = 25004696371200.

The previous prime is 111222022211987. The next prime is 111222022212053. The reversal of 111222022212000 is 212220222111.

It is a happy number.

111222022212000 is a `hidden beast` number, since 11 + 12 + 220 + 2 + 221 + 200 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 137480867596 + ... + 137480868404.

It is an arithmetic number, because the mean of its divisors is an integer number (207783698850).

Almost surely, 2^{111222022212000} is an apocalyptic number.

111222022212000 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 111222022212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239366821075200).

111222022212000 is an abundant number, since it is smaller than the sum of its proper divisors (367511619938400).

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

111222022212000 is a wasteful number, since it uses less digits than its factorization.

111222022212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253 (or 1222 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 111222022212000 its reverse (212220222111), we get a palindrome (111434242434111).

The spelling of 111222022212000 in words is "one hundred eleven trillion, two hundred twenty-two billion, twenty-two million, two hundred twelve thousand".