111122100201020 has 12 divisors (see below), whose sum is σ = 233356410422184. Its totient is φ = 44448840080400.

The previous prime is 111122100200983. The next prime is 111122100201029. The reversal of 111122100201020 is 20102001221111.

It is a junction number, because it is equal to n+sod(n) for n = 111122100200986 and 111122100201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122100201029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2778052505006 + ... + 2778052505045.

It is an arithmetic number, because the mean of its divisors is an integer number (19446367535182).

Almost surely, 2^{111122100201020} is an apocalyptic number.

111122100201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111122100201020 is an abundant number, since it is smaller than the sum of its proper divisors (122234310221164).

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

111122100201020 is a wasteful number, since it uses less digits than its factorization.

111122100201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5556105010060 (or 5556105010058 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111122100201020 its reverse (20102001221111), we get a palindrome (131224101422131).

The spelling of 111122100201020 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred million, two hundred one thousand, twenty".