111211022021120 has 80 divisors (see below), whose sum is σ = 304738059498048. Its totient is φ = 38129493258240.

The previous prime is 111211022021119. The next prime is 111211022021173. The reversal of 111211022021120 is 21120220112111.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3102968186 + ... + 3103004025.

Almost surely, 2^{111211022021120} is an apocalyptic number.

111211022021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111211022021120 is an abundant number, since it is smaller than the sum of its proper divisors (193527037476928).

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

111211022021120 is an frugal number, since it uses more digits than its factorization.

111211022021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6205972241 (or 6205972225 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111211022021120 its reverse (21120220112111), we get a palindrome (132331242133231).

The spelling of 111211022021120 in words is "one hundred eleven trillion, two hundred eleven billion, twenty-two million, twenty-one thousand, one hundred twenty".