111201220210 has 8 divisors (see below), whose sum is σ = 200162196396. Its totient is φ = 44480488080.

The previous prime is 111201220201. The next prime is 111201220217. The reversal of 111201220210 is 12022102111.

It can be written as a sum of positive squares in 2 ways, for example, as 105833753041 + 5367467169 = 325321^2 + 73263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×111201220210² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111201220217) 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, 5560061001 + ... + 5560061020.

Almost surely, 2^111201220210 is an apocalyptic number.

111201220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111201220210 is a deficient number, since it is larger than the sum of its proper divisors (88960976186).

111201220210 is a wasteful number, since it uses less digits than its factorization.

111201220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11120122028.

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

Adding to 111201220210 its reverse (12022102111), we get a palindrome (123223322321).

The spelling of 111201220210 in words is "one hundred eleven billion, two hundred one million, two hundred twenty thousand, two hundred ten".