111221312230000 has 200 divisors, whose sum is σ = 311453994918528. Its totient is φ = 37673585376000.

The previous prime is 111221312229967. The next prime is 111221312230013. The reversal of 111221312230000 is 32213122111.

It is a tau number, because it is divible by the number of its divisors (200).

It is a self number, because there is not a number n which added to its sum of digits gives 111221312230000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3761542 + ... + 15381541.

Almost surely, 2^{111221312230000} is an apocalyptic number.

111221312230000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111221312230000 is an abundant number, since it is smaller than the sum of its proper divisors (200232682688528).

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

111221312230000 is an equidigital number, since it uses as much as digits as its factorization.

111221312230000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19143201 (or 19143180 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111221312230000 its reverse (32213122111), we get a palindrome (111253525352111).

The spelling of 111221312230000 in words is "one hundred eleven trillion, two hundred twenty-one billion, three hundred twelve million, two hundred thirty thousand".