111211112120000 has 140 divisors (see below), whose sum is σ = 278497795003296. Its totient is φ = 44044003200000.

The previous prime is 111211112119993. The next prime is 111211112120033. The reversal of 111211112120000 is 21211112111.

It is a super-2 number, since 2×111211112120000² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9723752 + ... + 17803751.

Almost surely, 2^{111211112120000} is an apocalyptic number.

111211112120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111211112120000 is an abundant number, since it is smaller than the sum of its proper divisors (167286682883296).

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

111211112120000 is an equidigital number, since it uses as much as digits as its factorization.

111211112120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27527636 (or 27527611 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111211112120000 its reverse (21211112111), we get a palindrome (111232323232111).

The spelling of 111211112120000 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred twelve million, one hundred twenty thousand".