111102120020210 has 24 divisors (see below), whose sum is σ = 219816921761388. Its totient is φ = 40400770916000.

The previous prime is 111102120020183. The next prime is 111102120020219. The reversal of 111102120020210 is 12020021201111.

It can be written as a sum of positive squares in 2 ways, for example, as 96238003149409 + 14864116870801 = 9810097^2 + 3855401^2 .

It is not an unprimeable number, because it can be changed into a prime (111102120020219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45909965741 + ... + 45909968160.

Almost surely, 2^{111102120020210} is an apocalyptic number.

111102120020210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111102120020210 is a deficient number, since it is larger than the sum of its proper divisors (108714801741178).

111102120020210 is a wasteful number, since it uses less digits than its factorization.

111102120020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91819933930 (or 91819933919 counting only the distinct ones).

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

Adding to 111102120020210 its reverse (12020021201111), we get a palindrome (123122141221321).

The spelling of 111102120020210 in words is "one hundred eleven trillion, one hundred two billion, one hundred twenty million, twenty thousand, two hundred ten".