111120020201020 has 24 divisors (see below), whose sum is σ = 233428127338224. Its totient is φ = 44433515715456.

The previous prime is 111120020201009. The next prime is 111120020201023. The reversal of 111120020201020 is 20102020021111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120020201023) 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, 905709937 + ... + 905832616.

It is an arithmetic number, because the mean of its divisors is an integer number (9726171972426).

Almost surely, 2^{111120020201020} is an apocalyptic number.

111120020201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111120020201020 is an abundant number, since it is smaller than the sum of its proper divisors (122308107137204).

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

111120020201020 is a wasteful number, since it uses less digits than its factorization.

111120020201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811545629 (or 1811545627 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111120020201020 its reverse (20102020021111), we get a palindrome (131222040222131).

The spelling of 111120020201020 in words is "one hundred eleven trillion, one hundred twenty billion, twenty million, two hundred one thousand, twenty".