111020010210 has 48 divisors (see below), whose sum is σ = 299342848896. Its totient is φ = 29605335408.

The previous prime is 111020010197. The next prime is 111020010217. The reversal of 111020010210 is 12010020111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 111020010192 and 111020010201.

It is not an unprimeable number, because it can be changed into a prime (111020010217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22841194 + ... + 22846053.

It is an arithmetic number, because the mean of its divisors is an integer number (6236309352).

Almost surely, 2^111020010210 is an apocalyptic number.

111020010210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111020010210 is an abundant number, since it is smaller than the sum of its proper divisors (188322838686).

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

111020010210 is an equidigital number, since it uses as much as digits as its factorization.

111020010210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45687269 (or 45687257 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 111020010210 its reverse (12010020111), we get a palindrome (123030030321).

Subtracting from 111020010210 its reverse (12010020111), we obtain a palindrome (99009990099).

The spelling of 111020010210 in words is "one hundred eleven billion, twenty million, ten thousand, two hundred ten".