111222201121000 has 128 divisors (see below), whose sum is σ = 274733943868800. Its totient is φ = 42027960268800.

The previous prime is 111222201120971. The next prime is 111222201121037. The reversal of 111222201121000 is 121102222111.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1584502 + ... + 14998501.

It is an arithmetic number, because the mean of its divisors is an integer number (2146358936475).

Almost surely, 2^{111222201121000} is an apocalyptic number.

111222201121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111222201121000 is an abundant number, since it is smaller than the sum of its proper divisors (163511742747800).

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

111222201121000 is a wasteful number, since it uses less digits than its factorization.

111222201121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16583396 (or 16583382 counting only the distinct ones).

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

Adding to 111222201121000 its reverse (121102222111), we get a palindrome (111343303343111).

The spelling of 111222201121000 in words is "one hundred eleven trillion, two hundred twenty-two billion, two hundred one million, one hundred twenty-one thousand".