111201122221120 has 56 divisors (see below), whose sum is σ = 266383287221184. Its totient is φ = 44214098873856.

The previous prime is 111201122221031. The next prime is 111201122221121. The reversal of 111201122221120 is 21122221102111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111201122221121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040376222 + ... + 1040483101.

It is an arithmetic number, because the mean of its divisors is an integer number (4756844414664).

Almost surely, 2^{111201122221120} is an apocalyptic number.

111201122221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111201122221120 is an abundant number, since it is smaller than the sum of its proper divisors (155182165000064).

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

111201122221120 is a wasteful number, since it uses less digits than its factorization.

111201122221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080859507 (or 2080859497 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111201122221120 its reverse (21122221102111), we get a palindrome (132323343323231).

The spelling of 111201122221120 in words is "one hundred eleven trillion, two hundred one billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty".