111001222122020 has 24 divisors (see below), whose sum is σ = 233102794063104. Its totient is φ = 44400445495136.

The previous prime is 111001222122001. The next prime is 111001222122041. The reversal of 111001222122020 is 20221222100111.

It is a self number, because there is not a number n which added to its sum of digits gives 111001222122020.

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, 25395629 + ... + 29443851.

It is an arithmetic number, because the mean of its divisors is an integer number (9712616419296).

Almost surely, 2^{111001222122020} is an apocalyptic number.

111001222122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111001222122020 is an abundant number, since it is smaller than the sum of its proper divisors (122101571941084).

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

111001222122020 is a wasteful number, since it uses less digits than its factorization.

111001222122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419219 (or 5419217 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111001222122020 its reverse (20221222100111), we get a palindrome (131222444222131).

The spelling of 111001222122020 in words is "one hundred eleven trillion, one billion, two hundred twenty-two million, one hundred twenty-two thousand, twenty".